Enjoying a peaceable existence in 1885, Doctor Emmet Brown is about to be killed by Buford "Mad Dog" Tannen. Marty McFly travels back in time to save his friend.

Jennifer Parker: Dr. Brown, I brought this note back from the future and - now it's erased.
Doc: Of course it's erased!
Jennifer Parker: But what does that mean?
Doc: It means your future hasn't been written yet. No one's has. Your future is whatever you make it. So make it a good one, both of you.
Marty McFly: [Marty wraps his arm around Jennifer] We will, Doc.
[last lines]
Marty McFly: Hey, Doc! Where you goin' now? Back to the future?
Doc: Nope. Already been there.
Doc: Marty, you're going to have to do something about those clothes. You walk around town dressed like that, you're liable to get shot.
Marty McFly: Or hanged.
Doc: What idiot dressed you in that outfit?
Marty McFly: You did.
[at the town festival]
Buford "Mad Dog" Tannen: Then let's finish it, right now!
Buford's Gang Member #1: Uh, not now, Buford. Uh, Marshal's got our guns.
Buford "Mad Dog" Tannen: Like I said, we'll finish this tomorrow.
Buford's Gang Member #2: Tomorrow, we're robbin' the Pine City Stage.
Buford "Mad Dog" Tannen: What about Monday? Are we doin' anything Monday?
Buford's Gang Member #1: Uh, no, Monday'd be fine. You can kill him on Monday.
Buford "Mad Dog" Tannen: I'll be back this way on Monday! We'll settle this then... right there... out in the street... in front of the Palace Saloon!
Marty McFly: Yeah, right. When? High noon?
Buford "Mad Dog" Tannen: Noon? I do my killin' before breakfast! Seven o'clock!
Marty McFly: Eight o'clock. I do my killin' after breakfast!
Doc: And in the future, we don't need horses. We have motorized carriages called automobiles.
Saloon Old Timer #3: If everybody's got one of these auto-whatsits, does anybody walk or run anymore?
Doc: Of course we run. But for recreation. For fun.
Saloon Old Timer #3: Run for fun? What the hell kind of fun is that?
[Marty and Doc finally say each other's phrases the opposite way]
Marty McFly: Great Scott!
Doc: I know, this is heavy.
Buford "Mad Dog" Tannen: You owe me money, blacksmith.
Doc: How do ya figure?
Buford "Mad Dog" Tannen: My horse threw a shoe. And seein' as you was the one that done the shoein', I say that makes you responsible.
Doc: Well, since you never paid me for the job, I say that makes us even!
Buford "Mad Dog" Tannen: Wrong! See I was *on* my horse when it threw the shoe and I got throwed *off*! And *that* caused me to bust a perfectly good bottle of fine Kentucky red-eye. So, the way I figure it, blacksmith, you owe me five dollars for the whiskey and $75 for the horse.
Marty McFly: [hoarsely] That's the $80.
Doc: Look! If your horse threw a shoe, bring him back and I'll reshoe him!
Buford "Mad Dog" Tannen: I done shot that horse!
Doc: Well, that's your problem, Tannen!
Buford "Mad Dog" Tannen: Wrong! That's yours. So, from now on, you better be lookin' behind you when you walk. 'Cause one day you're gonna get a bullet in your back.
[Buford and his gang gallop away on their horses]
Marty McFly: How many did he have?
Bartender: Just the one.
Marty McFly: Just the one? Come on, Doc!
Bartender: There's a fella that can't hold his liquor.
[Doc and Marty are about to hijack the train]
Doc: Reach!
Engineer: Is this a holdup?
Doc: It's a science experiment! Stop the train just before you hit the switch track up ahead!
Marty McFly: Listen, you got a back door to this place?
Bartender: Yeah, it's in the back.
[Doc and Marty load the DeLorean onto the train tracks]
Doc: Marty, I've made a decision. I'm not going with you tomorrow. I'm staying here.
Marty McFly: What are you talkin' about, Doc?
Doc: There's no point in denying it. I'm in love with Clara.
Marty McFly: Oh, man. Doc, we don't belong here! Neither one of us! You know, it could still be you that gets shot tomorrow!
[shows Doc the photo of the blank tombstone]
Marty McFly: This tombstone could still be in your future!
Doc: Marty, the future isn't written. It can be changed. You know that. Anyone can make their future whatever they want it to be. I can't let this one little photograph determine my entire destiny. I have to live my life according to what I believe is right in my heart.
Marty McFly: Doc, you're a scientist.
[points to Doc's heart]
Marty McFly: So you tell me: What's the right thing to do?
Marty McFly: [points to his own forehead] Up here?
Doc: [sighs and looks again at the photograph] You're right, Marty.
[they release the DeLorean onto the tracks]
Marty McFly: Wow, that worked great.
Doc: I've at least gotta tell her goodbye.
Marty McFly: C'mon, Doc. I mean, think about it. What are you gonna say to her? "I gotta go back to the future"? I mean, she's not gonna understand that, Doc. Hell, I'm in it with you and even I don't understand it.
[pause]
Marty McFly: Doc. Listen, maybe we could - I don't know. Maybe we could just take Clara with us.
Doc: To the future?
[shakes his head]
Doc: As you reminded me, Marty, I'm a scientist, so I must be scientific about this. I cautioned you about disrupting the continuum for your own personal benefit. Therefore, I must do no less. We shall proceed as planned, and as soon as we return to 1985, we'll destroy this infernal machine. Traveling through time has become much too painful.
Marty McFly: Clayton Ravine was named after a teacher. They say she fell in there a hundred years ago.
Doc: A hundred years ago? That's this year!
Marty McFly: Every kid in school knows that story 'cause we all have teachers we'd like to see fall into the ravine.
[Marty and Doc meet for the first time in 1885, just as Doc has saved Marty from being hung to death]
Marty McFly: [weakly] Doc?
Doc: [boldly] Marty? I gave you explicit instructions not to come here, but to go directly back to 1985.
Marty McFly: [weakly] I know, Doc. But I had to come.
Doc: Well, it's good to see you, Marty.
[the two hug and then walk off and Doc adds]
Doc: Marty, you're going to have to do something about those clothes. You walk around town dressed like that, you're liable to get shot.
Marty McFly: [gesturing a rope around his neck, weakly] Or hanged.
Doc: What idiot dressed you in that outfit?
Marty McFly: [smiles weakly] You did.
Marty McFly: You're the doc, Doc.
Strickland's Deputy: [Buford is pulled out of a manure cart and up to his feet] Buford Tannen, you're under arrest for robbin' the Pine City Stage! You got anything to say?
Buford "Mad Dog" Tannen: [spits out a chunk of manure] I hate manure.
Marty McFly: You're Mad Dog Tannen!
Buford "Mad Dog" Tannen: Mad Dog? I hate that name. I hate it. You hear? Nobody calls me "Mad Dog", especially not some duded-up, egg-suckin' gutter trash.
Marty McFly: [reading the gravestone of Doc's future self] "Erected in eternal memory by his beloved Clara."
Marty McFly: [he turns to face Doc, inadvertently standing on the grave] Who the hell is Clara?
Young Doc: [shouts] Marty, please, don't stand there!
Clara Clayton: I don't dance very well when my partner has a gun in his hand.
Buford's Gang Member #2: Hey, take a gander at them moccasins! What kinda skins is them? What's that writin' mean?
Buford's Gang Member #1: "Nee-kay"? What is that, some sorta Injun talk or somethin'?
Doc: Marty, you can't go losing your judgment every time someone calls you a name. That's exactly what causes you to get into that accident in the future.
Young Doc: [while exploring the cave that holds the DeLorean in it] This reminds me of the time I attempted to reach the center of the earth. I'd be reading my favorite author, Jules Verne. I spent weeks preparing that expedition, I didn't even get this far. Of course, I was only 12 at the time. You know, it was the writings of Jules Verne that had a profound effect on my life. It was when I was 11 that I first read 20,000 Leagues Under the Sea. It was then that I realized that I must devote my life to science.
Jennifer Parker: [Marty floors his truck in reverse and turns the other way while Needles speeds off down the street] Did you do that on purpose?
Marty McFly: Yeah. You think I was stupid enough to race that asshole?
[they watch as a Rolls-Royce pulls out of a drive-way, not yielding the right of way, and Needles screeches on his breaks and zips around it. Marty is shocked to realize something valuable about his fate]
Marty McFly: [to himself] I would have hit that Rolls-Royce.
Buford "Mad Dog" Tannen: What's your name, dude?
Marty McFly: Uh, Mar- Eastwood. Clint Eastwood.
Buford "Mad Dog" Tannen: What kind of stupid name is that?
Doc: Marty, why are you wearing that gun? You're not considering going up against Tannen tomorrow?
Marty McFly: Doc, tomorrow morning, I'm going back to the future with you. But if Buford Tannen comes looking for trouble, I'm gonna be ready for him. You heard what that son of a bitch called me last night.
Doc: Marty, you can't go losing your judgment every time someone calls you a name. That's exactly what causes you to get into that accident in the future.
Marty McFly: What? What about my future?
Doc: I can't tell you. It might make things worse.
Marty McFly: Wait a minute, Doc. What is wrong with my future?
Doc: Marty, we all have to make decisions that affect the course of our lives. You've gotta do what you've gotta do. And I've gotta do what I've gotta do.
Colt Gun Salesman: [the gun salesman is amazed at Marty's gunmanship at a shooting gallery] Uh, just tell me one thing. Where'd you learn to shoot like that?
Marty McFly: 7-Eleven.
[after the duel between Buford Tannen and Marty, which ended with Buford landing in green horse dung]
Seamus McFly: [chuckling to himself] That was good.
[first lines]
Marty McFly: Doc! Doc! Doc!
Young Doc: [not paying attention] What?
Marty McFly: Doc!
Young Doc: What?
Marty McFly: Doc!
Young Doc: [finally seeing him] Aaaah!
Marty McFly: Okay, relax, Doc, it's me! It's me, It's Marty!
Young Doc: No, it can't be! I just sent you back to the future!
Marty McFly: Oh, I know you did send me back to the future. But I'm back, I'm back *from* the future.
Young Doc: Great Ssscott!
Doc: [consulting a map of the train line] This spur runs off the main line three miles down to Clayton Ravine. There's a long stretch of track that will still exist in 1985. This is where we'll push the DeLorean with the locomotive. Funny, this map calls Clayton Ravine "Shonash Ravine"... that must be an old Indian name for it. It's perfect, a nice long run that goes clear across the bridge over the ravine, you know, over near that Hilldale housing development.
Marty McFly: Right, Doc, but according to this map, there is no bridge.
[cut to Marty and Doc standing at the end of the track overlooking the ravine]
Marty McFly: Well, Doc, we can scratch that idea. I mean, we can't wait around a year and a half for this thing to get finished.
Doc: Marty, it's perfect, you're just not thinking fourth-dimensionally!
Marty McFly: [sotto voice] Right, right. I have a real problem with that.
Doc: Don't you see? The bridge *will* exist in 1985. It's safe and still in use. Therefore, as long as we get the DeLorean up to 88 miles per hour before we hit the edge of the ravine, we'll instantaneously arrive at a point in time where the bridge is completed. We'll have track under us and coast safely across the ravine!
Marty McFly: What about the locomotive?
Doc: It'll be a spectacular wreck. Too bad no one will be around to see it.
[reading his own gravestone in 1955]
Young Doc: "Shot in the back by Buford Tannen, over a matter of eighty dollars." What kind of a future do you call that?
[in a Drive-In, in 1955. The theater screen shows a still picture of a group of Native Americans riding horse in a desert]
Young Doc: All you have to do is drive the time vehicle directly toward that screen accelerating to 88 miles an hour.
Marty McFly: Wait a minute, Doc. If I drive straight towards the screen, I'm gonna crash into those Indians.
Young Doc: Marty, you're not thinking fourth dimensionally. You'll instantly be transported back into 1885, and those Indians won't even be there.
Marty McFly: Right.
Young Doc: Well, good luck for both our sakes. See you in the future.
Marty McFly: You mean the past?
Young Doc: Exactly!
[after a few minutes, when he uses the DeLorean and lands in 1885... an actual group of Native Americans is literally running towards his location]
Young Doc: [shouting frantically]
Marty McFly: Uhhhhh... Indians!
[Holding baby William]
Marty McFly: So you're my great-grandfather. The first McFly born in America. And you peed on me.
Colt gun salesman: I'd like for you to have this new Colt Peacemaker and gun belt. Free of charge.
Marty McFly: Free?
Colt gun salesman: I want everybody to know that the gun that shot Buford Tannen was a Colt Peacemaker.
Marty McFly: Hey-hey, no problem. Thanks a lot!
Colt gun salesman: Of course, uh, you understand, that if you lose, I'm takin' it back.
Marty McFly: Thanks again.
[Marty and Doc are asking how fast the train could go]
Marty McFly: Do you think it's possible to get it up to... 90?
Engineer: Ha! 90? Tarnation, son, who'd ever need to be in such a hurry?
Doc: Well, it's just a little bet he and I have, that's all. Theoretically speaking, could it be done?
Engineer: Well, I suppose if you had a straight stretch of track with a level grade, and you weren't haulin' no cars behind you, and if you can get the fire hot enough, and I'm talkin' about hotter than the blazes of hell and damnation itself... then yes, it might be possible to get her up that fast.
Doc: [while introducing his two sons to Marty] These are our sons; Jules, and Verne.
Marty McFly: [holding up a plate that says "Frisbee"] Hey, Frisbee, far-out.
Seamus McFly: What was the meanin' of that?
Maggie McFly: It was right in front of him.
Barbed-Wire Salesman: I've never seen a man so broken up over a woman. What did he say her name was, Cara, Sara?
Older Man on Train 2: Clara.
Barbed-Wire Salesman: Clara!
Clara Clayton: [Clara's eyes light up and she spins around in her seat] Excuse me.
Barbed-Wire Salesman: Ma'am.
Clara Clayton: But was this man tall, with great big brown puppy dog eyes and long silvery flowing hair?
Barbed-Wire Salesman: You know him?
Clara Clayton: [Clara lets out a happy sigh and spins back in her seat] Emmett!
[she reaches up and pulls on an emergency stop cord]
Young Doc: No wonder this circuit failed. It says "Made in Japan".
Marty McFly: What do you mean, Doc? All the best stuff is made in Japan.
Young Doc: Unbelievable.
[Clara is crawling on the train car filled with wooden fire logs]
Marty McFly: [into walkie talkie] You better hold on to somethin' Doc, the yellow log's about to blow!
[a large explosion occurs, sending a wave of sparks at Clara, knocking her over]
Clara Clayton: [sits up] Golly!
Doc: Marty, I gave you explicit instructions not to come here but to go directly back to 1985.
Marty McFly: I know, Doc. But I had to come.
Doc: But it's good to see ya, Marty.
[Marty has accepted Tannen's challenge to duel]
Seamus McFly: You had him, Mr. Eastwood! You could have just walked away and nobody would of thought the less of you for it. All it would have been was words... hot air from a buffoon. Instead, you let him rile you, rile you into playin' his game, his way, by his rules.
Marty McFly: Seamus, relax, I know what I'm doin'.
Maggie McFly: He reminds me of poor Martin.
Seamus McFly: Aye.
Marty McFly: Who?
Seamus McFly: Me brother.
Marty McFly: Wait a minute, you have a brother named Martin McFly?
Seamus McFly: *Had* a brother. Martin used to let men provoke him into fightin'. He was concerned people would think him a coward if he refused. That's how he got a Bowie knife shoved through his belly at a saloon in Virginia City. Never considered the future, poor Martin, God rest his soul.
Maggie McFly: Sure'n I hope you're considerin' the future, Mr. Eastwood.
[she walks away]
Marty McFly: [to himself] I think about it all the time.
Doc: [reading a letter his future self wrote] I never knew I could write anything so touching.
Marty McFly: I know, Doc, it's beautiful.
Young Doc: Well, good luck for both of our sakes. See you in the future.
Marty McFly: You mean the past.
Young Doc: Exactly!
Buford "Mad Dog" Tannen: [arriving at the Palace Saloon] Are you in there, Eastwood? It's eight o'clock, and I'm callin' you out!
Marty McFly: [looks at the town clock, then steps towards Buford cautiously at a window] It's not 8:00 yet!
Buford "Mad Dog" Tannen: It is by my watch! Let's settle this once and for all, runt! Or ain't you got the gumption?
Clara Clayton: Emmett, do you think we'll ever be able to travel to the moon like we travel across the country on trains?
Doc: Definitely, although not for another eighty-four years and not on trains. We'll have space vehicles, capsules to sail off in rockets, devices that create giant explosions, explosions that are so powerful that they...
Clara Clayton: [finishes Doc's sentence] "They break the pull of the earth's gravity and send their projectile through outer space."
[Doc stares at her in shock. Clara laughs]
Clara Clayton: Emmett, I read that book too. You're quoting Jules Verne, "From the Earth to the Moon".
Doc: You've read Jules Verne?
Clara Clayton: I *adore* Jules Verne.
Doc: So do I. "20,000 Leagues Under the Sea", my absolute favorite. The first time I read that when I was a little boy I wanted to meet Captain Nemo and...
Clara Clayton: [laughs] Don't tease, Emmett. You couldn't have read that when you were a little boy, it was only first published ten years ago.
Doc: Oh, yes, well... I meant it made me *feel* like a boy. I never met a woman who liked Jules Verne before.
Clara Clayton: I never ever met a man like *you* before.
[Doc and Clara kiss as a shooting star falls from the sky]
[1885 - Marty walks into a saloon, dressed in the outfit that Doc Brown gave him in 1955]
Saloon Old-Timer #1: Take a look and see what just breezed in the door.
Saloon Old-Timer #2: Why, I didn't know the circus was in town.
Saloon Old Timer #3: Musta got that shirt off'n a dead Chinee.
Bartender: What'll it be, stranger?
Marty McFly: Uh, I'll have an... ice water.
[the old-timers laugh]
Saloon Old Timer #3: Ice water?
Bartender: Water? You want water, you better go dunk ya head in the horse trough out there.
[pulls out a shot glass and pours into it]
Bartender: In here, we pour whiskey.
[Marty is left-behind back in 1955, with the young Doc of then as his only hope to getting back to the future]
Marty McFly: I'm sorry, Doc. It's all my fault you're stuck back there. I never should have let Biff get to me!
Young Doc: Well, there are plenty worse places to be than the Old West. I could've ended up in the Dark Ages. They probably would have burned me at the stake as a heretic or something.
Marty McFly: Bartender says 'that's the strongest stuff they got.'
[Doc begins to pour alcohol into the DeLorean's gas cap]
Doc: Try it Marty.
[Marty is trying to start the engine in the DeLorean. The engine begins to sorely start as he keeps turning the keys to work the engine]
Doc: Give it more gas...
[the DeLorean sounds as if its about to start until the fuel-injection manifold blows apart from the car with a lot smog as the car dies]
Doc: [Doc walks up to the fuel-injection manifold and picks it up] Damn! It blew the fuel injection manifold. Strong stuff alright, it'll take me a month to rebuild it.
Marty McFly: A month? Doc, you're gonna get shot on Monday!
Doc: I know, I know. Okay, we'll simply roll it down a steep hill... no, we'd never find a smooth enough surface. Unless... of course, ice! We'll wait until winter, when the lake freezes over we'll...
Marty McFly: Winter? Doc! Monday, it's three days away!
Doc: Okay, okay... we know that it won't run under it's own power and we know we can't pull it, but if we can find a way to push it up to 88 miles per hour.
[train whistle blows in the distance and Doc gets an idea]
Undertaker: Excuse me, Mr. Eastwood. I just need your measurement.
[measures Marty]
Marty McFly: Aw, look, pal. I don't wanna buy a suit.
Undertaker: [chuckles] No. This is for your coffin.
Marty McFly: [realizing what is going on] My coffin?
Undertaker: Well, the odds are running 2 to 1 against you. Might as well be prepared.
Buford "Mad Dog" Tannen: Smile, Marshall. After all, this *is* a party!
Marshall Strickland: The only party I'll be smilin' at is the one that sees you at the end of a rope.
Strickland's Deputy: Have fun.
[Buford and his gang head toward the town festival]
Marshall Strickland: [turns to his son] See, that's how you handle them, son. Never give 'em an inch, and maintain discipline at all times. Remember that word - "discipline."
Marshal Strickland's son: I will, Pa.
[the Marshall pats his son on the leg]
[in a library in 1955]
Doc: [reading a short biography about Buford Tannen] "Buford Tannen was a notorious gunman, whose short temper and a tendency to drool, earned him the nickname 'Mad Dog.' He was quick on the trigger and bragged that he'd killed 12 men, not including Indians or Chinamen."
Marty McFly: Does it mention me? Am I one of the 12?
Doc: [Puts up his finger] Just a minute. "However, this can not be substantiated since precise records were not kept after Tannen shot a newspaper editor who printed an unfavorable story about him in 1884." That's why we can't find anything.
Marty McFly: [Brings over a set of books] Look. "William McFly and family." Your relatives?
Marty McFly: My great-grandfather's name was William.
[Points to William]
Doc: That's him, good looking guy.
Marty McFly: Maybe it was just a mistake, Doc. Maybe that grave wasn't yours. There could've been another Emmett Brown back in 1885.
Doc: No.
Marty McFly: Did you have relatives here back then?
Doc: The Browns didn't come to Hill Valley until 1908. Then, they were the Von Brauns. My father changed our name during the first World War.
Marty McFly: [discovers a picture of Doc] Doc, look.
Doc: Great Scott. It's me! Then, it *is* true. All of it. It is me who goes back there and gets shot.
Marty McFly: It's not gonna happen, Doc. After you fix the time circuits and put new tires on the DeLorean, I'm gonna go back to 1885 and I'm bringing you home.
[Doc has altered history by saving Clara from falling into what would have been Clayton Ravine]
Marty McFly: Look, Doc, what's the worst that can happen, huh? So they don't name the ravine after her. Let's just get the DeLorean ready and get the hell out of here.
Doc: I wish I'd never invented that infernal time machine. It's caused nothing but disaster.
Bartender: [the bartender and his assistant, Joey mix up a special "wake-up juice" using hot peppers, Tabasco sauce and chili powder] In about ten minutes, he's gonna be as sober as a priest on Sunday.
Marty McFly: [sees clock outside - they have 10 minutes to get to the train] Ten minutes? Why do we have to cut these things so damn close?
[Marshall Strickland breaks up a brawl between Marty and Buford at the festival]
Marshall Strickland: [points rifle at Buford] All right now, break it up. What's all this about? You causin' trouble here, Tannen?
Buford "Mad Dog" Tannen: No trouble, Marshall. Just a little personal matter between me and Eastwood! This don't concern the law.
Marshall Strickland: Tonight, everything concerns the law. Now break it up. Any brawlin', it's 15 days in the county jail. All right, folks, c'mon, this is a party. Come on, let's have some fun!
[walks off the stage]
Marty McFly: I had this horrible nightmare. Dreamed I w-... dreamed I was in a western. And I was being chased by all these Indians... and a bear.
Maggie McFly: Well... you're safe and sound here, now, at the McFly farm.
Marty McFly: McFly farm? Why, you're my, you're my, my... who are you?
Marty McFly: [shouts into the walkie-talkie] Doc! The red log's about to bloooooooooooooooooow!
Marty McFly: [upon arriving in 1885; sees Indians on horseback, galloping towards him] Indians!
Doc: You're just not thinking fourth dimensionally!
Marty McFly: Right, right. I have a real problem with that.
[Clara is running over to Doc's barn]
Clara Clayton: Emmett!
[Enters barn]
Clara Clayton: Emmett! Emmett!
[She stops to catch her breath and looks down]
Clara Clayton: [Whispers] Time machine...
[Clara's slowly picks up the model time machine with her gloved hands and examines it]
Doc: Great Scott, Clara!
Doc: Clara! Climb out here to me!
Clara Clayton: I don't know if i can!
Doc: You can do it; just don't look down!
[Clara looks down at the churning wheels and starts leaning out]
Doc: That's it!
[Clara climbs over the cab and steps her high-heeled boots onto the train's thin, precarious ledge]
Marty McFly: [Into walkie talkie] 60 miles an hour, Doc!
[Marty McFly just found a tombstone with Emmett Brown's name]
Marty McFly: Doc! Doc! Come here quick!
Young Doc: What's wrong, Marty? You look like you've seen a ghost.
Marty McFly: You're not far off, Doc.
Doc: [into the walkie-talkie from inside the cab of the train] Each detonation will be accompanied by a sudden burst of acceleration. Hopefully, we'll hit 88 mph, before the needle gets much past 2,000.
Marty McFly: [into the walkie-talkie] Why, what-what happens after it hits 2,000?
Doc: [into the walkie-talkie] The whole boiler explodes.
Marty McFly: Perfect!
Buford "Mad Dog" Tannen: Listen up, Eastwood! I aim to shoot somebody today and I'd prefer it'd be you. But if you're just too damn yella, I guess it'll just have to be your blacksmith friend.
Doc: Clara was one in a million. One in a billion. One in a googolplex!
Marty McFly: [gears up before going to 1885] Hi-ho, Silver!
Bartender: Emmett! What can I get you? The usual?
Doc: No, Chester, I'm gonna need something a lot stronger than that tonight.
Bartender: Sarsaparilla?
Doc: Whiskey, Chester.
Bartender: Whiskey? Emmett, are you sure? You remember what happened to you on the 4th of July?
Doc: Whiskey.
Bartender: [gets out a whiskey bottle and a shot glass, and pours it] Okay, I ain't your papa. I just don't want to see you do the wrong thing.
[Clara has pulled the train's whistle, causing Doc to look back towards the cab]
Clara Clayton: [Waves] Emmett!
Doc: Clara!
Clara Clayton: I love you!
Marty McFly: [Into walkie talkie] Doc! Doc, what's happening?
Doc: [Into walkie talkie] It's Clara, she's on the train!
Marty McFly: [to himself] Clara? Perfect.
Doc: [Into walkie talkie] She's in the cab; I'm gonna go back for her!
Marty McFly: [Into walkie talkie] The windmill! Doc! The windwill, we're goin' past fifty, you'll never make it!
Doc: [Into walkie talkie] Then we'll have to take her back with us, but keep calling out the speed!
Doc: [upon seeing the "Howdy Doody Show" on TV] Howdy Doody time?
Marty McFly: [Doc and Marty use explosives to get in the old Delgado mine, which is near a graveyard] I think you woke up the dead with that blast!
[at a weapons checkpoint, Strickland holds a shotgun on Tannen]
Buford "Mad Dog" Tannen: Marshall Strickland. I didn't know you was back in town.
Marshall Strickland: If you can't read the sign, Tannen, I presume you can read THIS.
Doc: [after Doc wakes up from being passed out drunk from one shot of whiskey] The thing I really miss here is Tylenol.
Buford "Mad Dog" Tannen: Eight o'clock Monday, runt. If you ain't here, I'll hunt you and shoot you down like a duck.
Buford's Gang Member #1: It's "dog", Buford. Shoot him down like a dog.
Buford "Mad Dog" Tannen: [enraged] Lets go, boys! Let these sissies have their party!
Buford "Mad Dog" Tannen: [to his gang members] Let's go, boys. Let these sissies have their party.
Young Doc: Remember, where you're going, there are no roads.
Buford "Mad Dog" Tannen: Wake up! Get up! Let's go! I got me a runt to kill.
Buford's Gang Member #1: It's still early, boss. What's your hurry?
Buford "Mad Dog" Tannen: I'm hungry.
Townsman #1: Good morning, Mr. Eastwood.
Marty McFly: Morning.
Townsman #2: [hands Marty a cigar] Have a cigar, Mr. Eastwood. Anything I can do you for you today Mr. Eastwood?
Marty McFly: Uh, no. That's fine. I don't...
Townsman #3: Good luck tomorrow, Mr. Eastwood. We'll be prayin' for ya.
Marty McFly: Thanks.
Undertaker: [holding a funeral suit] Good morning, Mr. Eastwood. Interest you in a new suit for tomorrow?
Marty McFly: Uh, I'm-I'm fine. Thanks.
Bartender: [On the day Marty is set to face Buford in a shootout] Seamus! I didn't expect to see you here this early!
Seamus McFly: Aye. But somethin' told me I should be here, as if my future had something to do with it.
[Marty is still wearing his 1985 shoes]
Young Doc: Marty, you have to wear the boots. You can't wear those futuristic things back in 1885. You shouldn't even be wearing them here in 1955.
Marty McFly: Alright, Doc. Look, as soon I get there, I'll put them on. I promise.
Marty McFly: [running into the Saloon] Doc. What are you doin'?
Doc: I've lost her, Marty. There's nothing left for me here.
Marty McFly: Yeah, that's why you gotta come back with me.
Doc: Where?
Marty McFly: Back to the future.
Doc: [Nods his head] Right. Let's get going.
[puts down his glass of whiskey]
Marty McFly: [muffled] Great.
Doc: Gentlemen, excuse me. But, my friend and I have to catch a train.
Saloon Old-Timer #1: Cheers to ya, blacksmith.
Saloon Old Timer #3: And to the future.
Saloon Old-Timer #2: Amen.
Doc: [picks up his glass of whiskey] Amen.
Bartender: Emmett, no!
[Doc throws back the whiskey and turns and passes out, tipping over a table in the process]
[after the DeLorean is smashed to bits by a freight train upon his eventual return to 1985]
Marty McFly: Well, Doc, it's destroyed. Just like you wanted.
[repeated line]
Marty McFly: This is heavy.
[repeated line]
Doc: Great Scott!
Marty McFly: Hey, lighten up, jerk!