Best horror movie deliberate mistakes of all time

Please vote as you browse around to help the best rise to the top.

Cube picture

Deliberate mistake: Leaven spends too much time thinking about if 645 and 372 are prime numbers to be believable. But she knows the factors of 649 and the result of 26 to the power of 3 almost immediately. Plus anyone with any maths knowledge whatsoever would know that any even number (or one divisible by 5) can't be prime, so 645 and 372 could be dismissed without even thinking about it.

More Cube deliberate mistakes
Ghost Ship picture

Deliberate mistake: At the beginning and especially at the end, Julianna Margulies spends extensive time in the ocean, wearing nothing but cargo pants and a T-shirt. Considering the movie takes place just off the Bering Strait, wouldn't she have quickly frozen to death? (01:21:05)

More Ghost Ship deliberate mistakes
The Lost World: Jurassic Park pictureThe Lost World: Jurassic Park mistake picture

Deliberate mistake: When the ship crashes into the dock, all of the scenes leading up to the crash and after it show a clear view across the harbor as we can see lights and land on the other side. It's not until the ship is about to crash that a thick and dense fog appears and disappears within a minute to mask the ship to create a more dramatic effect.

jerimiah
More The Lost World: Jurassic Park deliberate mistakes
House on Haunted Hill picture

Deliberate mistake: When Eddie and "Jennifer" are walking around the house alone, she is trying to tell Eddie that she's really Sara. But by the time she is explaining that, Eddie has disappeared. She doesn't find him until later. But from the moment she finds him (and he is talking to her) he calls her Sara, despite never actually hearing her say that. Also, after they all get back together, a few of the other people start calling her Sara as well, but no one actually heard that either.

More House on Haunted Hill deliberate mistakes
Psycho picture

Deliberate mistake: When Norman picks up Marion's supposedly naked body to carry it to his trunk, a bra is visible through the shower curtain. Gus Van Sant included this goof in his 1998 remake.

More Psycho deliberate mistakes
Final Destination 3 picture

Deliberate mistake: There are a number of things wrong with the roller coaster scene (besides the obvious impossibility of a crash like this actually occurring):1) The restraints use ratchets to lock, not hydraulics. A coaster of this type wouldn't even have any hydraulic lines.2) No roller coaster has restraints that lower by themselves.3) The attendants didn't check all the restraints. This is ALWAYS necessary, on ANY ride.4) On any roller coaster, the Dispatch button (or "Start" in the movie) must be held down until the train is clear of the station. This is a safety feature to make sure the attendants are clear of the moving train. If the button is released before the train is clear of the station, it will stop.5) At the bottom of the lift, the lift chain curves to follow the track into the station. This is impossible, a lift chain cannot curve horizontally, only vertically (normally at the top of the hill).

More Final Destination 3 deliberate mistakes
Jeepers Creepers 2 picture

Deliberate mistake: When the Creeper gets stabbed through the eye with the javelin, it goes through the front of his eye, but when it comes out the other end the eye is facing backward. (00:50:00)

More Jeepers Creepers 2 deliberate mistakes
Alien picture

Deliberate mistake: After Ash's body is incinerated, the interior walls of the Nostromo appear more metallic and grey than they were before. According to Ridley Scott, this was done deliberately to make the alien's presence appear more menacing.

THGhost
More Alien deliberate mistakes
Saw 3D pictureSaw 3D mistake picture

Deliberate mistake: If you look at the IP address of the junkyard, it is listed as: 634.634.99.234.88. An IP never goes over 255. (01:00:10)

Ssiscool Premium member
More Saw 3D deliberate mistakes
Pitch Black picture

Deliberate mistake: In Paris' death scene, he blows alcohol onto his torch that illuminates the creatures around him. However the area is still illuminated after the light from his torch has disappeared. (01:12:05)

THGhost
More Pitch Black deliberate mistakes
Darkman picture

Deliberate mistake: There is just too much movement and detail in the synthetic skin masks. Peyton lost a large portion of his face in the explosion, and cannot make much expression with his own face, but somehow he can make the masks move perfectly just like a real face.

More Darkman deliberate mistakes
Dressed to Kill picture

Deliberate mistake: Has there ever been a more obvious body double than the one used for Angie Dickinson in the shower scene? Not only does the top of every shot stop right at the collarbones, she is much taller than Dickinson, she has a much deeper tan and (of course) her breasts are much, much bigger.

More Dressed to Kill deliberate mistakes
The Order picture

Deliberate mistake: There is one scene in the movie where Heath Ledger reads a Latin sentence in a book. As he is translating the sentence, he goes over the words one by one with his finger. This would never be possible in a Latin sentence, because words in Latin are never in exactly the same order as in English. Words that actually belong together can be placed at opposite ends of a sentence.

More The Order deliberate mistakes
The Exorcist picture

Deliberate mistake: Father Merrin says, "It is He who commands you", and we hear and see the ceiling crack above his head. In the next shot we see the ceiling above him and they are no cracks in it, but four shots later we see the exact same spot and now cracks appear even though we hear no more cracking over-dubs after the first one. (01:49:15)

????
More The Exorcist deliberate mistakes
Bride of Chucky picture

Deliberate mistake: When Tiff (as a doll) lights her Zippo you don't see her clicking the flint, even though one can hear a 'clicking' sound. (00:33:35)

Mortug
More Bride of Chucky deliberate mistakes
Hollow Man picture

Deliberate mistake: Elizabeth Shue uses a drawer handle as an electromagnet. OK if it's really a magnetic material but lab furniture is generally made of aluminium or stainless steel which is not. There is no way that they would use an iron handle in a potentially wet, and hence corrosive, environment such as a freezer.

tw_stuart
More Hollow Man deliberate mistakes
I Know What You Did Last Summer picture

Deliberate mistake: Another indication that this was filmed on the west coast is that in the opening shot you can see the sun. If this was North Carolina at sunset then the sun would not be visible across the ocean. (00:01:20)

jle
More I Know What You Did Last Summer deliberate mistakes
A Nightmare on Elm Street picture

Deliberate mistake: As Nancy and her Mum are leaving Rod's funeral, you can see the shot of them leaving the funeral has been sped up. Watch the Volvo "jerk" as it pulls away as the speed is rapidly increased.

More A Nightmare on Elm Street deliberate mistakes
Resident Evil: Extinction picture

Deliberate mistake: During the scene where Carlos and L.J. are searching the motel, L.J. sees a zombie which turns out to be a reflection in a wall-length mirror. L.J. shoots, breaking the mirror and realizing his mistake. But, if he had been standing in front of the mirror as shown, he should have seen his own reflection standing there as well. This was done as an homage to a similar encounter in the original game. (00:24:20)

Upvote valid corrections to help move entries into the corrections section.

Suggested correction: There are two mirrors. One of which is at angle and reflecting an area that LJ wasn't in. Hence why he turns around about 45° and gets attacked by the woman. As such, he's not going to see his reflection.

Ssiscool Premium member
More Resident Evil: Extinction deliberate mistakes
Plan 9 From Outer Space picture

Deliberate mistake: They keep using the same footage of Bela Lugosi walking in the cemetery, even the cars driving by out on the road are the same. (00:53:00)

????
More Plan 9 From Outer Space deliberate mistakes

Join the mailing list

Separate from membership, this is to get updates about mistakes in recent releases. Addresses are not passed on to any third party, and are used solely for direct communication from this site. You can unsubscribe at any time.

Check out the mistake & trivia books, on Kindle and in paperback.