Continuity mistake: When Michael enters the Elrods' home and steals the knife, as he picks up the knife from where Mrs. Elrod had left it, there are several drops of blood that fall onto the lunchmeat, presumably from Michael's injuries from having been shot. A few seconds later when Mrs. Elrod walks back over to the lunchmeat and reaches for the knife and sees the blood, the droplet patterns are different.
Continuity mistake: When Scott gets his throat cut, blood pours out. Yet when Terri spins him around, there's no blood anywhere on him except a small amount on his shirt sleeves.
Continuity mistake: When the two station reporters are showing Eddie's drawings to George Waggner, the drawings change position on the desk between shots. (00:16:00)
Continuity mistake: After the 'game' of flying over the drawbridge in cars, Ginny runs away into the forest with just her scarf. In the forest she has her scarf and handbag.
Continuity mistake: As Kevin and the Time Bandits make their way to the place that Napoleon has taken control of, five people are executed by a firing squad. A couple shots later, the same group of people are being executed again. (00:15:35)
Continuity mistake: About half way through the movie, the three main characters are in a loft. When the Asian girl grabs the postal worker's jacket, a cassette tape falls out of his pocket. As the girl bends down to pick up the tape, the camera shows here reaching with one hand, and then the camera switches to a close-up of her picking up the tape with the opposite hand.
Continuity mistake: Jack sees the car drive into the creek and runs to check for anyone injured. Jack dives into the water and you see the car submerge completely. Jack is then looking around and the car's trunk is sticking out of the water, then submerges yet again.
Continuity mistake: At the end of the movie when Pam returns to her dorm room she heads to the bathroom for the final surprise. When she walks towards the bathroom door you can see the door is only slightly ajar, however when the shot changes to inside the bathroom the door is now almost fully open (open enough to see Pam fully).
Continuity mistake: The actress playing Dolores is suddenly played by scream queen Linnea Quigley. The original was recast due to the actress having problems with the nudity, and shots of her were cut out as much as possible.