Character mistake: The news article on the murdered gentleman David Carradine discusses has the word existence spelled wrongly. It says existance. (00:37:57)
Continuity mistake: When Lucifer confronts Thomas, Lucifer forcefully pulls him closer and puts his right hand on his chest, but the close-up shows that his hand is under Thomas' arm. (01:21:20)
Continuity mistake: When Sgt. Howie first goes to the Post Office, he walks through to where Myrtle is painting the hare. He puts down his leather case which then changes position a few times during the next few shots, until the scene ends.
Continuity mistake: After Redmond is killed, when the flashback starts, Leonard's back is to the main door of the cabin. When the flashback is over, his back is to the kitchen.
Other mistake: Misspelled word; "Complilation" on the on screen text. (01:34:50 - 01:37:00)
Continuity mistake: At the end of the movie, the bloody handprint on the car changes entirely the second time it is shown. (02:02:45)
Continuity mistake: When Christella is slapped by the possessed Ike, her pose changes between shots.
Continuity mistake: Malorie pulls out her Sig Sauer P229 handgun and begins firing but the insane guy disarms her and the handgun falls. Malorie is on a boat and the crazy guy is standing in deep water. It isn't shown where the handgun lands when it falls out of the insane guy's hand. Later on Malorie pulls another Sig Sauer handgun from the same holster, however this time it's a model P228 or possibly P226, the 226 has a 0.5 inch longer barrel. The 229 and 228 have completely different slides. The 229 is a legacy. (00:36:50 - 01:01:30)
Continuity mistake: During the chase scene where they attach the "engine killer" remote to the Dodge M4S (aka Wraith's vehicle), 2 Chevy Malibu Cop cars are barreling up the road towards the racers. Once the cops pass the starting line, the cars are now Dodge cop cars. (00:44:25)
Visible crew/equipment: When the severed head in Nora's suitcase has vanished, she shouts for everyone to get out and leave her alone. In the hallway when they disperse, as Loren and then Trent walk past Lance, something that shouldn't be there (it looks like fingers perhaps) pops up into view at the bottom, left corner of the screen. This is clearer in the colorized version of the film. (00:49:00)
Continuity mistake: When Renée Zellweger drives up in front of her house the first time in the movie, as she shuts her car off, her window is down. When she gets out, the window is back up.
Continuity mistake: When Sang-hwa is fighting with his first zombie, just as Seok-woo begins to walk past him, Sang-hwa's hands are shown holding onto the zombie's neck, but in the next shot, his right hand is suddenly holding onto the zombie's head. (00:25:38)
Continuity mistake: When Josh's mom is about to cut the Butcher/Millie out of the chair, pay attention to her right hand, which is holding the knife. Right before the Butcher/Millie springs up, as she's talking to her son, her arm goes from down by her side with the knife pointed down, to up by her chest instantly between cuts.
Revealing mistake: During the big fight scene, you can tell easily that Frank is wearing knee pads (try looking when his pant leg is wet). Construction workers will often wear knee pads for work but most often they wear them on the outside of the pants to save the knees of their pants. (00:58:50)
Revealing mistake: When Austin goes to write the Roman numeral "XVII" on the chalkboard, the erased numerals from a previous take are still visible where he's about to write it. (00:41:36)
Continuity mistake: In the introductory scene, when Carol tells Marty she is wet all over, we see that Marty is wearing black underwear. In the very next shot the underwear has disappeared.
Continuity mistake: When Redferne finds the page of the Grand Grimoire, he is holding it with his right hand. In the next shot, he is holding it with his left hand. (00:52:17)
Continuity mistake: At the start, Simone puts the rubber tube round her arm. Camera cuts - it's no longer round her arm and she puts it round again. (00:03:35)
Continuity mistake: In the iconic scene where Julie screams "what are you waiting for?", she at first faces Barry and Helen then she turns around. In the next shot, she's still facing them and has to turn around again. (01:00:44)
Continuity mistake: When Fuller falls to his death, the mannequin used as his stand-in gets decapitated on its way down. It even makes a loud noise. When Fuller lands, however, his head is still on his shoulders.