Continuity mistake: When chasing Jamie in the woods, Mikey's headlights go from normal chevy headlights to off-road high beams.
Continuity mistake: Right at the beginning, a little girl does a somersault and her hat falls off. In the next shot as she's running, she has her hat back on.
Factual error: Budapest didn't exist in 1489. The cities of Buda and Pest weren't combined until 1873.
Plot hole: Where exactly did all the other people go on the ship? In the beginning of the movie there were people everywhere then all of a sudden it's down to the main characters.
Other mistake: When Tom Hanks is walking down the stairs a chainsaw comes through the wall. If you look at the wall a second earlier you can see a line where the chainsaw is supposed to come through.
Revealing mistake: In one shot when Alice is in the shower, as she turns for the soap you can tell she is wearing brown underwear. (00:03:30)
Continuity mistake: In the scene where Jonathan finds Cooper in the bathroom possessed, Cooper attacks John with a knife in his left hand. As Cooper lunges at him, John slams the door, but Cooper's left hand crashes through with little problem. But, there's no knife. The knife is now in Cooper's right hand. (01:05:42)
Continuity mistake: When Andre Toulon puts Blade into the suitcase, near the start of the film, Blade's hook is on his right hand but it is attached to his left hand in all other shots of him. (00:09:45)
Revealing mistake: At the end of the movie when they reach the surface, you can see that the horizon is nothing but a big wall with the sky painted on it. You can see the water splashing up against the wall.
Revealing mistake: When Beth is helping Martin out of Bartok's cocoon, you can see Martin wearing pants inside the cocoon. Surely he should be naked. (01:35:15)
Continuity mistake: In the last ten minutes, Sam Neil is on a raft and Nicole Kidman pulls him aboard a schooner while it is moving, getting Sam's blue shirt soaked. When the camera changes to aboard the schooner, his blue shirt is completely dry. His hair is very wet though.
Continuity mistake: When the devil sets Toxie on fire, there's a group of five people standing there with empty buckets. But in the next shot the buckets are filled with water.
Continuity mistake: When Lucas and his family are watching TV, Donna is sitting on the right side of the couch with her arm on the arm rest. When it cuts she has moved to the middle of the couch. (00:49:50)
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.
Revealing mistake: Obvious stuntman in a flame resistant suit when Eric's on fire.
Revealing mistake: In the scene at the graveyard, after the Warlock assembles the Grand Grimoire and commands it to say God's true name, the fake headstone behind him starts to fall over. (01:33:02)
Suggested correction: Other headstones can be seen falling before this scene.
Other mistake: At the beginning of the film, there's no way Angela would possibly have been able to know the exact moment the girl would have been walking down the street and what she'd be wearing so she could be wearing the exact outfit.
Other mistake: In the opening credits of the movie, actress Luana Ravegnini's last name is misspelled as "Ravagnini" (00:01:20)
Continuity mistake: When Tim gets stabbed, the killer's silhouette shows that he's holding his knife overhand. When he stabs Tim, he's holding the knife underhand.