The clip A chase through the dancefloor from Back to the Future Part II (1989) with Michael J. Fox, Christopher Lloyd
Doc! Doc! Hey, you.
Doc, come in! Marty, what's up?
Doc! I'm in trouble. I blew it.
Where's the book? Biff must have it.
I've only got the cover. Where's Biff?
You're asking for it. I don't know.
Any idea? No! He could be anywhere by now.
The entire future depends on you getting that book!
I know. I just don't- Stop it!
Stop it, Biff. You'll break his arm. Stop it!
I gotta go. I got one chance! My old man is about to deck Biff!