Horror movies are creepy enough as it is, but some films come with even spookier behind-the-scenes facts that'll send shivers down your spine.
Maybe you've heard that an actual human skull was used in the first model of the iconic Alien creature.
Or that the actor who played a radiologist's assistant in The Exorcist was a convicted murderer who dismembered and killed gay men in the late '70s.
Maybe you're aware that Chucky is based on a real doll named Robert, basically a life-sized voodoo doll that's currently locked away in a glass case in Florida.
So, tell us: What horror movie fact always freaks you out?
