Community·Posted on Sep 7, 2017What Creepy Horror Movie Facts Make You Uneasy?And you thought scary movies couldn’t get scarier.by Anna KopskyBuzzFeed StaffFacebookPinterestTwitterMailLink 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. Dimension Films / Universal Pictures Maybe you've heard that an actual human skull was used in the first model of the iconic Alien creature. 20th Century Fox 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. Warner Bros. / Murderpedia / Via buzzfeed.com 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. MGM / Wikipedia Commons / CC BY 2.0 / Via en.wikipedia.org So, tell us: What horror movie fact always freaks you out? Universal Pictures / DreamWorks Tell us in the Dropbox below for a chance to be featured in an upcoming BuzzFeed Community post or video.