When I was a kid, I couldn't watch The Blob. I don't know what it was about that movie, but it scared the poop out of me. I think that this movie has a lot to do with how I feel about Jello. I'm not a big fan.
The Sixth Sense was an awesome movie. I still get chills watching it, even though I know the ending. Unbreakable, while not a scary movie, was also cool.
Several years ago, I worked the 3 - 11 shift at a nursing home. While driving home one night, I found a radio station that played the old radio shows, you know - the scary ones. I would listen to them all the way home...and then I couldn't get to sleep. I think these were scarier because you used your imagination instead of seeing what other's imaginations thought things looked like.