Continuity mistake: When Tina runs up the stairs and then falls through, she lands on a blanket but when she stands up, the blanket is gone.
Continuity mistake: Jason chases Pam with a clean machete, however in the shot just before he's hit by the tractor, the machete is bloody. (01:10:40 - 01:11:20)
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.
Continuity mistake: In the beginning, when the two shuttles have docked together, one of the NASA astronauts inserts some kind of key into the door and begins to turn it. When he does you hear a ratcheting sound, however, once the door begins to open and there's a shot from the inside of the uninhabited shuttle, the astronaut isn't holding any type of tool, and still the ratcheting sound can be heard as the door opens further.
Continuity mistake: In the beginning of the film where Charlie watches Dandridge and Cole move the coffin into their house, there is a close-up shot of Amy removing her blouse. The film then cuts to a close-up again of Charlie and in the background Amy's blouse is still on (probably only visible in the widescreen version of the film). (00:05:20)
Continuity mistake: When the balls start to bounce of the shelves, in one shot a basketball hits some tennis rackets which are hanging on the wall and a few of the rackets fall off the wall, but in the next shot the tennis rackets are hanging back up on the wall. (00:33:05)
Continuity mistake: Near the end when the vampires are trying to get into the crypt and Jim Carrey has locked them out, we see two vampires trying to enter the room through one door and others going around to get in through the other entrance. When they get in, the vampires have reversed which entrance they were trying to use - the ones who stayed at the first door enter through the second door and vice versa.
Continuity mistake: When Jennifer finds the small boy, she removes a sheet from a mirror. In the next shot the sheet is draped back over the mirror again and then gone again. (01:35:50)
Continuity mistake: The glass window in the door to Dr. Hill's office is broken so that the main character and his girlfriend can enter. Later when Dr. Hill and his severed head return, the glass is perfectly fine.
Continuity mistake: The judge arrives and tells the audience that they can sit down. The guy on the left with a white linen shirt sits and crosses his left leg. Reverse shot, and he is repeating the action, this time crossing his right. (00:03:20)