"Jacob's Ladder" starring Tim Robbins is a good "edge of your seat" movie. I warn you, this is not a movie you want to walk out of the room on - if you do, you could get "lost". Hubby and I had to watch it twice cause we left the room for potty breaks or more popcorn and couldn't catch back up. I give it a
The first "Nightmare on Elm Street" was really scary when I first saw it in theaters. I like the original Halloween as well as Alien and Aliens (just the first 2), The Howling, and The Lost Boys.
Best of luck - there are some really good suggestions for you already posted.