The clip breaking up Part 2 from Back to the Future Part III (1990) with Michael J. Fox, Christopher Lloyd
Come on, Doc.
Think about it. What will you say to her?
"I've got to go back to the future"? She won't understand that.
Hell, I'm in it with you, and I don't even understand it.
Maybe we can just take Clara with us.
To the future?
As you reminded me, I'm a scientist, so I must be scientific about this.
I cautioned you about disrupting the continuum for your own 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.