Almost everyone knows that movies such ... are aware that it was based on a novel. The book was published in 2011 by Adam Nevill, a British author well-known in the horror literary scene.

But in the case of the following, you’ll have a whole lot of fun discovering the books that inspired them. These are the ...

Some horror movies that are based on true stories stretch the truth in order to deliver a scarier film for the audience.

Horror movies based on true stories ... self-aware moments. But it is based on the life and work of Fr. Gabriele Amorth, who wrote dozens of books about his work as an exorcist.

Despite what popular perception might be, a lot of horror fans watch scary movies ... (the book was inspired by a real boy) etc. Without further ado, here are our favourite horrors based on ...

And as it turns out, that book ... is based on the alleged experiences of author Whitley Strieber, who said he had a not-so-fun time being abducted by aliens. An Australian horror movie about ...

I love horror ... the scariest movie of all time, this flick tells the story of a little girl who becomes possessed and the priests who try to save her. The movie was based on a book with the ...

Pictures/courtesy Everett Collection Sure, films such as The Amityville Horror, Nightmare on Elm ... The film is based on books written by Andrea Perron, the couple's oldest daughter, who was ...