Best comedy movie mistakes of 1982
Revealing mistake: In the scene where Chuck finds Bill in the morgue vault listening to the recording of Chuck telling him to shut up, take note of Bill's thumb on the rewind button of the tape recorder. You can hear the tape recorder rewinding to replay the words, "Chuck to remind Bill to SHUT UP" multiple times but Bill's thumb does not move at all until he turns the recorder off.
Continuity mistake: When Dustin Hoffman (dressed as Dorothy) goes to babysit for Jessica Lange he takes a bunch of flowers as a present. Jessica Lange takes them from him and throws them on the kitchen table. Then she walks into the kitchen (shot from different angle) still holding the flowers and throws them on the table (again).
Audio problem: In the scene where Jack Brown (Richard Pryor) is talking to Eric about "Earning a friend" there is a problem with the lip-sync when the camera changes to an overshoulder of Richard. His mouth is moving but the spoken text is different. This occurs repeatedly during that scene.
Add timeGeert Kusters
Factual error: When Gary unscrews the top to the nozzle of the front tire of Karen's bike it automatically starts to make a loud hissing sound as if it's losing air rapidly. This wouldn't happen as although the tire would lose air over time it wouldn't make that loud hissing sound unless there was a rip or tear in the rubber.
Continuity mistake: When Kenny Rogers gets trapped in the rest room at the beginning of the film, he pulls the knob out from the door. When this happens, the knob is on the left side of the door from his point of view. After he climbs out the window, the door has changed to having the hinges on that side and the style of the door does not look like it has a knob at all. A rest room this size would only have one door, so it has to be the same door.