Continuity mistake: In the scene where Dennis and his mother are on their way to Margaret's house, the lock on the passenger's side door is locked and then unlocked when the camera view changes. (00:11:40)
Continuity mistake: One of the first shots of Switchblade Sam is a closeup of his face, in which the viewer can see he is wearing contact lenses. Kinda hard to believe this homeless-type villian with blackened and missing teeth, old torn clothes and unwashed stringy hair maintains contact lenses. (00:18:20)
Continuity mistake: In the bedroom scene, Dennis' overall buckle is normal. But after he pops the cap off the aspirin bottle, it's pushed all the way to the side. The next shot shows it as normal again.