Revealing mistake: First visit to the Malibu's house, after Jimmy enters the house, you can see the door being closed magically by itself and reopening on its own. (00:27:30 - 00:28:30)
Taking Care of Business (1990)
1 revealing mistake
Directed by: Arthur Hiller
Starring: James Belushi, Jim Belushi, Charles Grodin, Loryn Locklin, Anne De Salvo
Factual error: When Jimmy hot-wires the Lotus for the last time, he touches a red wire to a black one, the starter engages and the engine starts. Then he twists the two wires together. This would result in the starter running constantly, overheating it, and burning it out. A competent car thief would know never to do that.
Spencer Barnes: I've worked hard to work this hard.