If you're a horror movie fan, the phrase "based on a true story" is one you've probably heard over and over in conjunction with your favorite fright flicks.
But sometimes, the scariest stories associated with on-screen scare fare come from their respective sets, from macabre mishaps to chilling happenings that just can't be explained.
With this in mind, I've assembled 18 true nightmares that you'll be shocked to hear actually transpired behind-the-scenes of various horror films.
Ready? Here we go:
1.A catastrophic nightmare on-set of A Nightmare on Elm Street, Part 4: The Dream Master:
2.Director Ti West's unsettling experiences at the Yankee Pedlar Inn during The House of the Devil inspired The Innkeepers:
3.A creepy crawler nearly derailed Sinister II:
4.Is The Exorcist a cursed film franchise? Many seem to believe so:
5.The truly ghastly incident on-set of Incident in a Ghostland:
6.The horror of making The Texas Chain Saw Massacre:
7.And was there really a haunting on the set of The Possession? The evidence appears to point to yes:
8.Cost-cutting creepiness brought an eerie authenticity to Poltergeist:
9.Life imitated art on the set of the Friday the 13th remake:
10.The Amityville Horror remake was plagued by creepy coincidences:
11.Bad omens raised hell on-set of The Omen:
12.Annabelle Comes Home had a myriad of macabre mysteries:
13.Odd radio silence (or lack thereof) on-set of The Exorcism of Emily Rose:
14.The set of The Shining met a fiery demise:
15.They used real witchcraft for a fictional deity in The Craft:
16.Wes Craven struck real fear into Miko Hughes on-set of New Nightmare:
17.Was there a ghostly presence on-set of The Lords of Salem? It sure sounds like it:
18.And finally — the cast and crew of The Pope's Exorcist witnessed a firsthand fright:
Do you know any creepy on-set movie stories? Let us know in the comments below!