When Anton pulls away after hitting Debi with the Ford, both hands can be seen on the steering wheel.
When Anton and his dog, Duke, are under the sheets, their heads are at about the same spot. But when it cuts just before Anton goes to get the phone, his dog's head is not under the covers.
Before Anton screams that they're out of milk, his pipe on the bottle disappears and then reappears.
The X-Marks on Debi's map changes over the shot.
In the very beginning of the movie they show the pumpkin head people decorations directly in the window almost touching the window but when Anton's mom comes downstairs to check on her husband the pumpkin head people are far enough away from the window for her to walk in front of both of them with plenty of room to blow out the candles inside.
When the camera shows a shot of the newspaper clipping pinned on the wall in Debi's trailer, the heading and the first paragraph are about the murders in Bolan. The rest of the text is about the Watergate Scandal.
After slipping on the blood at the base of the stairs Anton's mother's knee pads can be seen as she gets up to run up stairs.
Obvious use of a painted copper pipe elbow to replace the real plastic inhaler mouthpiece when Anton lights up his hash pipe.
Molly ties Tonya's whip to the crossbeam to escape the ventilation duct, but when she climbs down it you can see that it's a climbing rope.
Anton disconnects the blue mouthpiece to his "asthma inhaler" and begins to light up, however the mouth piece is knocked out of his hand when Mick reaches through the ground and grabs Anton. When Anton stands up, the blue mouth piece is still attached.
The United States DVD claims to include supplementary production notes, but there are none on the disc or printed inside the cover.
When Pnub is trying to run out of the door after Anton kills Mick, he opens the door for a second and a light stand is visible.