Blair Witch scared the piss out of me when I first saw it at the theater. Of course, all my friends made fun of me. That next summer when we went camping, they bundled sticks together & put them outside my tent.
Saw - can't believe nobody mentioned this yet, maybe I missed it. So. Scary. I'm excited about the sequel, but I don't know if I can handle seeing in in the theater.
Silence of the Lambs - one of the few movies ever that gave me nightmares.
Seven - crrrreeeeeeeppppppppyyyy!
Carrieand
Poltergiest when I was younger.