Oh man, I first saw the Exorcist when I was being babysit by a friend's incredibly irresponsible mom at like 7-8 years old, and it scared the #### out of me. I remember what made it worse was the other kids (yep, kids!) fell asleep way before me. I distinctly recall being terrified at stuff like the defiled Mary statue. The subway dream and the "DO YOU KNOW WHAT SHE DID??!?" scene are the best, imo. That movie rules.