Revealing mistake: After Christine gets out of the shower, we hear the director cue her by saying, "Go," before she walks past the camera.
Revealing mistake: When Dooley talks about his car to his boss, there is a woman in the ambulance behind him writing on some paper. If you look closely you can see that she is just moving her hand and not actually writing. (00:10:25)
Revealing mistake: A woman drives along a straight street with a row of houses parallel to the driver's side of the car. She turns her steering wheel to the right to give the impression she is making a right turn, but the houses along the street stay parallel to her car. There is not enough curve in the street to require turning the steering wheel that much. (00:07:10)
Revealing mistake: As the Spleen and Invisible Boy stand silhouetted in front of the moon, their motions are easy to tell as the film being run forward and backwards.