As a kid the first movie i remember scaring the living crap out of me was Jaws. I vividly remember waking from a nightmare that night and my bed felt like it was still bobbing in the ocean that was in my dream. The Blob, The Thing and Alien are distant contenders from jaws but they were creepy. As a horror fan, i enjoy (and by enjoy i mean i feel the need to shower after watching them) Hellraiser 1,2,3.