While joining the Xs on the map to form the pentagram, Vivica A. Fox omits the X for Beaver, Utah, and instead places an X in northern Arizona.
After Anton pulls away having struck Debi with the Ford, both hands are clearly visible on the steering wheel.
Both of his hands can be seen. After Curtis and Tiffany are discovered in the car, Anton rests his right hand on Mick's shoulder, then his left as he walks away.
When Anton and his dog, Duke, are tucked beneath the duvet, their heads sit roughly at the same spot. However, in the cut just before Anton goes to fetch the telephone, Duke's head is no longer under the covers.
At the very start of the film the pumpkin‑headed decorations are shown right up against the window, almost touching the glass, but when Anton’s mum comes downstairs to check on her husband the pumpkin figures are placed further from the window, giving her plenty of room to walk in front of them and blow the candles out inside.
When Mick feeds cheese balls to the "head" sitting in the chair, the number of cheese balls lying in front of the head varies with every cut between shots.
The X-marks on Debi's map shift throughout the shot.
Just before Anton cries out that they've run out of milk, the pipe attached to the bottle vanishes and then reappears.
When Anton places the hand in the microwave and blood sprays the interior, the placement and pattern of the stains on the microwave window shift between shots.
When Anton wakes at the start, the mouthpiece is fitted to his inhaler; by the time he goes down to the kitchen it has gone, only to reappear later when he uses the inhaler as a pipe.
As Pnub attempts to dash out through the doorway after Anton has killed Mick, he opens the door briefly, revealing a lighting stand.
After Anton severed his hand, Mick rushes into the laundry room and grabs an iron. He uses it to cauterise the wound, despite the iron not being plugged into any mains socket.
Anton removes the blue mouthpiece from his "asthma inhaler" and begins to light up, but the mouthpiece is knocked from his hand when Mick reaches up through the ground and grabs Anton. When Anton gets to his feet, the blue mouthpiece is still attached.
Although the US DVD claims to include additional production notes, none are present on the disc or printed inside the sleeve.
When the camera briefly captures a newspaper clipping pinned to the wall of Debi's trailer, the headline and opening paragraph concern the murders in Bolan. The remainder of the article, however, discusses the Watergate scandal.
A painted copper pipe elbow is clearly used in place of the genuine plastic inhaler mouthpiece when Anton lights his hash pipe.
Molly fastens Tonya's whip to the crossbeam to get out of the ventilation duct, but when she climbs down it becomes apparent that it is a climbing rope.
After slipping on the blood at the bottom of the stairs, Anton's mother's knee pads are visible as she gets to her feet and runs upstairs.
