Paranormal Activity

The most recent scary movie I've seen is "Paranormal Activity". I am a big fan of anything that has to do with ghosties! The film is portrayed as being a documentary, but it wasn't as scary as I was expecting. There are two endings to the movie. I'll admit that the first ending gave me a bit of a jump! That's what I'm looking for...a great scary movie that has me sitting on the edge of my seat while gripping my bag of popcorn! Unfortunately, I have yet to find that movie. Anyone have any good suggestions?