The mask in Scream is based on an Edvard Munch painting entitled "The Scream."

Some theatergoers watching The Blair Witch Project experienced nausea from the handheld camera movements and actually had to leave to vomit. In some Toronto theatres, ushers asked patrons who where prone to motion sickness to sit in the aisle seat and to try not to "throw up on other people."

The Freelings built their house next to a big oak tree. Steven tells his son Robbie that he built the house next to the tree so it could protect them, claiming that it is a "very wise old tree". But the tree comes to life during a thunderstorm, smashing through the wall and abducting Robbie.

Director Wes Craven knew the unseen was far scarier than the seen, which is why Freddy Krueger only has 7 minutes of screen time in the original film.

Camp Crystal Lake had 22 years of uninterrupted good times until a handicapped camper drowned in the summer of 1957, setting off string of grisly murders.

In Halloween: The Curse of Michael Myers, it is finally revealed that Michael is the victim of an ancient Druid curse, which explains his inhuman strength and uncanny resiliency. Each child chosen to bear the curse of Thorn must sacrifice their next of kin on the night of Samhain.

Dana Plato, who would later become famous for the role of Kimberley Drummond on Diff'rent Strokes, was originally offered the role of Regan, but her parents got spooked by the material and pulled her from consideration.

Paranormal Activity was shot out of sequence due to director Oren Peli's self-imposed seven-day shooting schedule. Peli chose to shoot the picture with a home video camera, which was almost always sitting on a tripod to eliminate the need for a camera crew.

The Exorcist earned 10 Oscar nominations in 1974, including a Best Supporting Actress nod for Linda Blair, who was just 15 years old at the time.

Sean Chapman played Frank with skin. Oliver Smith played him with no skin. And Andrew Robinson played him in his brother's skin.