Possible spoilers ahead!

Warner Bros.

In Friday the 13th, Jason Voorhees’ name was orginally going to be “Josh.” The name quickly changed because it needed to be “scarier” and to because Josh is screenwriter Victor Miller’s son’s name.

Paramount Pictures

Psycho is the first American movie to feature a toilet on-screen.

Paramount PIctures

The Blair Witch Project was filmed in just eight days.

Artisan Entertainment

In Candyman, actress Virgina Madsen was actually hypnotized during certain scenes in an effort to get a more “authentic” reaction.

TriStar Pictures

Cult of Weird

Shelley Duvall suffered from severe stress while filming The Shining, which caused some of her hair to fall out.

Warner Bros.

New Line Cinema

Paranormal Activty is the most profitable movie of all time. It cost $450,000 to make and grossed nearly $90 million.

Paramount Pictures

The school in The Birds is said to be a haunted house.

Universal Pictures

According to Eli Roth, the idea for Hostel came about after a friend of his showed him a Thai website where people can pay $10,000 to “walk into a room and shoot somebody in the head.”

Lionsgate

The cast and crew of The Amityville Horror remake kept waking up around 3 a.m., which is around the time the original murders took place.

Creepy.

Metro-Goldwyn-Mayer

As if that wasn’t terrifying enough, a dead body was found floating near the set.

Metro-Goldwyn-Mayer

Final Destination is based on a rejected X-Files episode.

New Line Cinema

Scream was originally titled “Scary Movie.”

Kevin Williamson

MGM/UA Communications Co.

Michael Cera auditioned for the role of Cole in The Sixth Sense.

Buena Vista Pictures/Fox / Via scribol.com

The creature in Creature from the Black Lagoon is modeled after the Oscars statuette.

Universal-International

The demon in The Exorcist is named Pazuzu.

Warner Bros.

The set of Poltergeist featured actual skeletons because, at the time, real skeletons were cheaper than props.

MGM/UA Entertainment Co.

During the filming of The Conjuring, Vera Farmiga experienced several instances of paranormal activity, including finding claw marks on her thigh.

Warner Bros. Pictures

Scream is loosely based on actual murders that took place in Florida.

Dimension Films