American Graffiti (1973)

Continuity mistake: When Falfa's Chevy flips over, we can see that it has no fuel tank at all in it. However, in the next shot the car now has a visible fuel tank, and it explodes.

RJR99SS

Factual error: In one scene a parked car is sitting along the street - it is a '68 Chevy, it has sidelights. Yet the film is set in 1962.

Factual error: In one scene, Milner does a U-turn and you see a postal box on the curb. The logo on the box is the current white eagle drawing, but that was not used until well after 1962.

Trivia: When Terry is being introduced, he drives up on his scooter, and has quite a bit of trouble parking it. This is because Charles Martin Smith actually didn't know how to drive a stick shift. The small accident he has is real, you can see him crash, look up towards the camera (at Lucas), and continue the scene. Lucas motioned for him to continue, because the crash looked so interesting.

RJR99SS

Trivia: Harrison Ford wears a white cowboy hat in the film, because George Lucas wanted him to get his hair cut in the 1950's "crewcut" fashion. Ford didn't want to because it was in style to have longer hair at the time and he was afraid it would affect future acting jobs if he cut it. He convinced Lucas to just let him wear the hat to cover his hair.

RJR99SS

Trivia: John Milner's license plate is 'THX 138' (referring to the George Lucas film 'THX 1138'). The police car that had the rear axle ripped out also had the same license plate.

Terry Fields: Jesus, what a night.

Terry Fields: Pardon me, sir, but I lost my I.D. in... in a flood and I'd like to get some Old Harper, hard stuff. Would you mind buying a bottle for me?
Bum at Liquor Store: Why certainly! I lost my wife, too - her name wasn't Idy, though, and it wasn't in a flood - but I know what ya.
Terry Fields: Thanks, here's enough for a pint.

John Milner: So, your Judy's little... Shit! How old are you?
Carol: I'm old enough. How old are you?
John Milner: I'm too old for you.
Carol: You can't be that old.