Revealing mistake: At one point John is complaining about the Beach Boys playing on his car radio, he reaches to the center console and motions turning the radio off. In a few other shots though, we see that the car appears to have no radio at all, the center console seems to have a large tachometer and speedometer there, but that's all.

American Graffiti (1973)
1 revealing mistake - chronological order
Directed by: George Lucas
Starring: Harrison Ford, Ron Howard, Richard Dreyfuss, Charles Martin Smith, Paul Le Mat
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.
Terry Fields: Jesus, what a night.
More trivia for American Graffiti
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