From what I have read, the Exorcist was based on an incident that happened when the author was young, but not to him. It happened to a little boy who spoke in languages he did not know and seemed possessed. One of the incidents I remember hearing about was when this little boy was being exorcised by the priest, he punched into his mattress and pulled out a metal spring and stabbed the priest in the leg. So, the Exorcist was based on "some" events that supposedly happened, but it was a little boy instead of a girl.
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http://en.wikipedia.org/wiki/The_Exorcist http://en.wikipedia.org/wiki/William_Peter_Blatty |
Jsin