Strange Circus
Ju-on (not the us remake)
Ringu (the original Jp one)
Pulse(not the us remake)
One Missed Call(not the us remake)
Wishing Stairs
Whispering Corridors
Memento Mori
The Eye(pang brother one)
Dark Water
Suicide Circle(nothing to do with supernatural though)
Tale Of 2 Sisters
i wasn't quite convince on the Exocism on Emily Rose. Unable to fit all these 3 elements together.
There wasn't a pretext for the demon incursion.
6 in 1 possesion.
Last of all The Exocism was done together with laity
CANNIBAL HOLOCAUST (i hope my spelling is right!)
do a wikipedia search on this 1970's film and you will understand why it's one of the most controversial horror movies in history.
and the best part is, i think you can watch it for free on google videos!