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!

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.

Jennifer Parker: Did you do that on purpose?
Marty McFly: Yeah. You think I'm stupid enough to race that asshole?

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: Look, Doc, as soon I get there I'll put them on. I promise.

We shall proceed as planned, and as soon as we return to 1985, we shall destroy this infernal machine. Traveling through time has become much too painful.


Marty McFly: You're Mad Dog Tannen!
Buford "Mad Dog" Tannen: Mad Dog? I hate that name. I hate it. You hear? 'Cause nobody calls me "Mad Dog", especially not some duded-up, egg-sucking gutter trash.

Buford's Gang Member #2: Hey, get a gander at them moccasins! What kinda skins is them? What's that writing mean?
Buford's Gang Member #1: "Nee-kay"? What is that, some kinda Injun talk or something?

"Shot in the back by Buford Tannen, over a matter of 80 dollars." What kind of future do you call that?

Young Doc

Marty McFly: Great Scott!
Doc: I know, this is heavy.

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.

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.

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.

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Back to the Future Part III Quotes

Marty McFly: Listen, you got a back door to this place?
Bartender: Yeah, it's in the back.

Marty McFly: Hey, look, Frisbee. Far-out! [leaves]
Seamus McFly: Wonder what he meant by that?
Maggie McFly: It was right in front of him.