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John Milner's license plate is 'THX 138' (referring to the George Lucas film 'THX 1138'). See more...
American Graffiti (1973) - 26 mistakes
Directed by George Lucas, starring Charles Martin Smith, Harrison Ford, Richard Dreyfuss, Ron Howard (add more)
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.
Continuity: When Toad turns the 58 Impala around to pick up Debbie. She walks past the same Blue Corvair twice. She then steps from the curb to talk to Toad. The Corvair is parked next to the curb. When they switch to the long shot the Corvair has been replaced by a gold coloured Buick. When they drive away the Corvair reappears in its original position.
Continuity: After Carole is hit with the water balloon thrown from a passing car, she tells John Milner to catch them at the light, where he's to flatten their tyres while she sprays the windshield with shaving cream. Carole sprays the front windshield, then starts to go to the back of the car to spray the back window. The front windshield is clean, even though Carole just emptied a can of shaving cream onto it.
Continuity: During the first set of cruise scenes, you can see a shot of a yellow '56 Chevy parked on the opposite side of the street with the hood raised and a coupe of guys working on the engine (just after a purple-ish '40 Ford rolls past). In the very next shot, you can see the same car for a very brief moment, this time with the hood down. A few shots later, you see the same yellow '56 yet again, but this time being driven. Finally, in the very next shot, Milner drives past it yet again, still parked on the side of the street, with the hood down.
Factual error: In the scene where the cable is being placed around the police car axle, the noise from doing it is drowned out by noise from a nearby railroad. The noise is actually that of a steam locomotive doing switching duties - and steam locomotives disappeared from the railroads that would have gone through Modesto (Santa Fe and Southern Pacific) by the mid-50's.
Deliberate "mistake": The Studebaker in which Carol is first riding bears the license number JPM 351, which interestingly enough, is not only the same license number that Steve's 58 Chevy has, but is also worn by the car Curt is sitting on when he first meets the Pharaohs. To top it off, the Edsel driven by Cindy Henderson has plates reading PRC 596, which are also used by a silver 57 Chevy and a red pickup.






