Factual error: Harlan's car has a Roots style supercharger. They can't be "turned on and off" as shown. There is no carburettor or fuel injection lines shown between the scoop and the compressor.
My Science Project (1985)
1 factual error
Directed by: Jonathan R. Betuel
Starring: John Stockwell, Fisher Stevens, Raphael Sbarge, Danielle von Zerneck
Continuity mistake: When Mickey is being interviewed for the yearbook, watch out for students that walk in his opposite direction. There are obvious recycled extras appearing in multiple shots coming from the same direction, such as the blonde with checkered top paired up with a guy in a blue shirt. (00:09:00)
Detective Nulty: What's your name, cowboy?
Bob Roberts: Robert Roberts, Esquire to you, honky.