Here are the real events that inspired — and were inspired by — William Friedkin's horror masterpiece. Blatty first heard about the case of “Roland Doe” when he was a student at Georgetown University.

Heralded as one of the scariest movies of all-time, 1973’s The Exorcist remains one of the most prestigious horror movies in the genre. With its gripping portrayal of Catholic priests exorcizing an ...

Warning: This post contains spoilers for The Ritual. Considering it provided some inspiration for William Friedkin's seminal 1973 horror classic The Exorcist, the real-life exorcism case of Emma ...

Warning: This article contains spoilers for The Exorcist. As written by William Peter Blatty, both in his original novel and his Academy Award-winning screenplay, The Exorcist (1973) did not happen.

But what makes them even more terrifying and appealing to horror fans is when they are based on true events. Films such as ...