10 Creepiest Movie Mistakes Ever
9. The Sloth Victim's "Third Arm" - Se7en
David Fincher's Se7en is a sublimely creepy movie as it is, and one that includes one of the eeriest mistakes you're ever likely to see.
When Detectives Mills (Brad Pitt) and Somerset (Morgan Freeman) discover the killer's emaciated victim intended to represent sloth, viewers who take a close look at his body might notice a "third arm" is in fact visible.
In reality, the scene is colour-graded dark enough that Fincher probably assumed audiences wouldn't be able to notice the actor's real arm hidden alongside their body, while a thinner, bonier prosthetic arm lies next to it.
But we all watch movies under slightly different conditions at home, and so if you've got the brightness turned up a little higher, it's easy to see the poor guy sporting a third upper limb.
Even when you appreciate the simple technical explanation for the mistake, that's a deeply unsettling look.