The only original movie that really, truly scared me was
The Exorcist. The sound effects were chilling. And that scene of the little girl crawling down the hall all inverted on her hands and legs....backwards.....oh, that creeped me out! I still get scared even when I hear the theme music.
There was something on television a couple of weeks ago that I started watching and should have stopped....but no, I just HAD to watch it....and then I was scared. DS was out so I had every light in the house on. When he got home he said the house looked like an airport...he could see it from the end of the road!