Horror Movies Based on a True Story
Here’s a list of Horror Movies Based on a True Story.
The Exorcist
Amityville Horror
Primeval
Silence Of The Lambs
An American Haunting
Texas Chainsaw Massacre
Psycho
The Exorcism of Emily Rose
Rose Red
The Shining
The Fog – (actual shipwreck off of the coast of California. Near the town of Goleta, California in the 19th century a ship sank and its contents were plundered.)
Rosemary’s Baby – (based on the devil baby of Hull House)
The Town that Dreaded Sundown
Deranged
Mothman Prophicies
From Hell
Sweeney Todd
Zodiac
Ted Bundy
Gein, Speck
Citizen X
Summer Of Sam
Henry Portrait of a Serial Killer
Boston Strangler
Ten Rillington Place
Helter Skelter
The Jonestown massacre
Legend of Boggy Creek: A True Story

[...] Based On A True Story [...]
Psycho, Texas Chainsaw Massacre, and Silence Of The Lambs are based on the same serial killer
interesting…
Sweeny Todd was based on real? I bet even Jonny Depp didn’t know that -.-
bratzgirl2233-
the Sweeney Todd movie that “recently” came out was based on numerous pieces of work, including real historical events. There is also a book (if my memory serves me correctly), a play/musical, and a few movies made in the 70′s through the 90′s, I think.I cannot recall the exact date(s). and yes, I believe he did know of the story behind the movie before he agreed to work on it.