American Graffiti (1973)

Factual error: In one scene a parked car is sitting along the street - it is a '67 Chevy. 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.

Visible crew/equipment: As Milner and Carol get out of his hot-rod to vandalize the girls' stopped car, a bearded man with a mustache can be seen in the car window's reflection as it's being rolled up. The man is wearing a white long-sleeved shirt with what appears to be a maroon sweater-vest. I believe the man to be George Lucas, as he appears to be directing in an upward motion with his left arm.

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.

The Mel's Drive-In restaurant seen in the film had been closed for a number of years. It was re-opened for filming, and demolished shortly after the movie was completed.

The entire movie was filmed over a span of about 29 consecutive days, and George Lucas generally didn't allow scenes to be re-shot if they came out plausible. Thus, entire scenes in the movie have botched lines and ad-libbed parts, the best of which probably being Toad's boasting about Milner's racing ability after Falfa rolls his car: Charlie Martin Smith couldn't remember most of his lines when they shot this scene, and made almost all of them up on the spot.