10 More Horror Movies That Accidentally Filmed Things You Weren't Supposed To See

Since actors are the front and centre of every film, it's easy to forget there's an army of crewmembers working their butts off to make sure everything goes off without a hitch. The smallest slip-up can lead to an entire scene being reshot, which is why everyone behind the scenes must remain vigilant when it comes to spotting faults, no matter how minor.

But let us not forget how messy the filmmaking business can be. No matter how attentive the crew is, in terms of lining up shots and matching the continuity, blunders are bound to happen, and that's certainly the case with horror movies.

Although such discrepancies occur in every form of cinema, they are extremely common when it comes to the genre. Lower budgets and tight shoot schedules can often mean that filmmakers don't have the money to shoot elaborate sequences again and again. So, if a crewmember walks on set or a boom mic comes into view, it may end up in the final cut. 

Though the subject has been covered in a previous list, here are 10 more horror movies that accidentally filmed things you weren't meant to see!

The Descent is filled to the brim with scenes designed to cause nightmares. The opening jump-scare. The den of bones. The heart-wrenching ending (at least in the British version).

Also, let's not forget about the moment when the Crawler pops into frame unannounced. Even before the main ensemble encountered the carnivorous troglodytes, the tension was through the roof since there was no mistake that something was lurking in the caves. As such, it's tempting to scour through every frame, hoping to catch a glimpse of these subterranean critters.

In doing so, something else entirely can be found hiding in the caverns. Around the 25-minute mark, one of the characters ignites a flare, illuminating the terrain below. 

A humanoid figure can be spotted in the bottom left, which appears to be a Crawler. At first, this seems like a genius usage of foreshadowing, since the prehistoric savages haven't been officially introduced at this point.

In reality, this entity is a crewmember who happened to be on set while the camera was rolling. Reshooting the sequence didn't seem necessary, as this unintended gaffe amplified the creep factor in an already gripping scene.