Scariest Movie you have ever watched?

What is the scariest movie you have ever watched??

The scariest movie I have ever watched is one of the oldest, first, silent, black and white Dracula Movies. but boy did it scare the crud out of me. I dare somebody to watch it!!
Update: Oh I see some good ones!!

the black and white movies are the scariest!! LOL
I actually watched Halloween
Jeeper creepers was scary. But it wasnt as scary as Dracula!!
Anybody got some good Vampire movies or zomby movies?
Update 2: OMG! The exorsist was the scariest!!
aww I cant get over the scene when the girl spun her head...awww nasty
thats was the only scene Icould stand :-D
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