Quotes
Doc: The only power source capable of generating 1.21 gigawatts of electricity is a bolt of lightning.
Marty: What?
Doc: A bolt of lightning! Unfortunately, you never know when or where it's ever going to strike!
[Marty holds out the "Save the Clock Tower" flyer]
Marty: We do now.
Mistakes
When Marty is on a skateboard being chased around the town square by Biff and his friends, he grabs the back end of a truck. After the truck makes a right turn, notice how the two kids he initially stopped to get a skateboard from at the beginning of the scene suddenly appear standing at the street corner between shots, holding their wooden crates. See more...
Trivia
Right when Marty returns to 1985, and has to run back to the mall, we see him call the drunken bum on the bench "Red". In 1955, "Red" is the first name of the mayor running for re-election in one of the first shots of the town we see. See more...
Movie Mistakes blog
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Other great sites
When Marty's been thrown back by the amp, the papers on top of him change between the first and second shot. Precisely a Polaroid photo, a poster/map and a vase are missing.
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