Continuity mistake: When Cynthia Rothrock acts as a bait for the maniac at the beginning of the movie, she is walking down the nice and brightly lit slums in black high heels. A fight ensues, and she kicks him around wearing black sneakers (after her triple roundhouse she strikes a pose in a wide shot and it's very noticeable). Her incompetent partner joins in late, and she walks out on him wearing high heels again. (00:01:55)
Continuity mistake: In the first meeting with the man with the hat, Ice puts one foot on the portable cooler, but the position of the foot on the floor changes when there's a cut. Even more obvious, when she steps in front of him, the tip of her red stilettos touch his feet, but at the cut their tips are distant, and she moves in with her right foot first, as opposed as before. (00:09:15)
Continuity mistake: When Jason and The Count duel, the cut on Jason's cheek is already there before The Count cuts him there. By that point, Jason was only cut on the shoulder.
Continuity mistake: The sun angle at the beginning during the basketball game changes. In the low angle shots, the shadows are longer. Toward the end of the sequence, the sun is higher.
Continuity mistake: Whilst the assistant warden has Ricky's hand trapped in his hook hand, there is a shot where the assistant warden slams his right hand into his hook hand to make it more painful for Ricky. In the next shot of Ricky, both of his eyes are shown wide open. When the shot cuts, his left eye is suddenly squinting and is closed more than the right eye. (00:25:37)
Continuity mistake: David arrived home late for his birthday and his wife is mighty irritated; she serves him on purpose a couple of completely charcoaled steaks. However, the food looks completely different in the close-up (there's much less of it, for starters). (00:15:45)
Continuity mistake: At the end of the movie, the villain's car flies off a cliff and explodes, rolling belly up completely. A minute later, the helicopter flies by for the end credits, and the car is now flipped almost 180°, just tilted to the side. (01:31:20)
Continuity mistake: When Lena sees Julie's body in a trunk her right arm's sticking out. A shot of Lena then suddenly Julie's arm is folded over her body.
Continuity mistake: It wasn't snowing in the front of the house (e.g, when Ethan, Hallie, and Stephanie were going home; when the ambulance arrived; when anyone came in the front door), but it was snowing heavily in the rear of the house during scenes showing the Christmas tree. (01:18:24 - 01:20:42)
Continuity mistake: Cynthia walks alone to Joyce's house and also leaves by herself to clean the van. She speeds away from the house in order to clean the van in secret, but she somehow has her toddler son with her while she is cleaning the van. (00:46:45 - 00:52:16)
Continuity mistake: When the red haired woman is undressing to enter the jacuzzi to kill the guy, her red dress is either on top of the white robe, or next to it, depending on the shot.