Continuity mistake: After Nathan pours the gasoline and throws the match in the well, we see a canister and shotgun sitting by well. But when the well explodes, they've disappeared. (01:23:50)
Continuity mistake: When Jason throws Linderman to the wall he gets impaled by a sharp object stuck to the wall. However as Linderman is flying against the wall before hitting it the object isn't there. (01:13:40)
Continuity mistake: Before Bonnie's operation to remove her scars they can be seen across her back and down one arm, yet in at least two scenes before the operation she is seen wearing sleeveless or very short sleeved tops with no scars visible.
Continuity mistake: The amount of blood in the stains of Emilio Estevez's shirt changes between scenes. Sometimes they are small stains, close to the holes, then they are larger, as if blood seeped into the shirt, then they are smaller and slightly different in position in a later shot.
Continuity mistake: During the Sound Stage scene, Chucky and Tiffany kill the puppeteer by chopping his head off with wire. When the blood splatters all over Tiffany's and Chucky's faces, Tiffany's right eye is covered in blood. In the next shot there is no sign of blood in the eye at all.
Continuity mistake: When De Niro first meets Nolte's lady-friend, they are having a conversation in a bar or restaurant. As the camera goes from De Niro to the woman, the woman's top blouse button is open in one shot, then closed, then open, etc.
Continuity mistake: When Miroslav is massaging Whitney in the hot springs, the amount of body scrub cream on them drastically changes during shots.
Continuity mistake: As Mike scrolls through the microfilm, we see his view as the pages scroll from right to left. The shot then reverses to show his face through the scrolling film, but while the film is now properly reversed, it's still moving right to left in our view. But this reversed angle should show it moving left to right. (00:12:05)
Continuity mistake: After Claudia leaves the ride without her cell phone it cuts to Fin driving his car into dense fog, and in the exterior shots the Toyota's front grille emblem as well as the license plate inexplicably vanish, and then reappear.
Continuity mistake: When Larry is taken home after being bitten by the werewolf, the door opens and Larry is seen staggering in. In the next shot, the door is seen opening again.
Continuity mistake: Laurie drops the items in the mail slot twice at the Myers' house. (00:58:30)
Continuity mistake: Near the start, after Lucian saves Sonja from the werewolves. Before Sonja throws Lucian the the sword, Viktor and his guards are walking around the corner next to the ladder. When she throws it they disappear, when Lucian catches it they reappear. (00:06:30)
Continuity mistake: When the stairs are first shown, there's carpet up the middle of the stairs. At the end when they flee the house it's gone.
Continuity mistake: During the sheriff interview scene with Abbey, the time is listed as 3:45am, but later in the scene, the clock reads 2:15am.
Continuity mistake: When Rhonda climbs out of the ditch with Earl, where the graboid has killed itself, her backpack is slung over her right shoulder and hanging in front of her. In the next shot when she's standing up, the backpack is on her back.
Continuity mistake: In the first two Omen movies, Damien's mark of the Beast was hidden on the top of his scalp. In this movie, it's behind his right ear.
Continuity mistake: When looking at the dog from the bedroom window, there are 2 windows in the room facing the dog. When we see the window from outside only 1 window is lit up, despite both being in the same room. (00:11:30)
Continuity mistake: After Norman argues with Mr Toomey, before he goes up to the house, you can plainly see the light on in the living room where Mary is sitting. When Norman goes in the house, Mary is sitting in the dark and Norman then turns on the light.
Continuity mistake: When they are chasing the 'muncher' ghost down the street, the light bar is only seen flashing on the Ecto 1 when seen from inside the restaurant. The rest of the time they are not on. (00:59:00 - 00:59:30)
Continuity mistake: In the scene where Captain Rhodes is first introduced. Initially, his captain insignia is horizontal (correctly). After a few shots in the same scene, his rank is now vertical.