The Exorcist (All of them)
Never seen it myself, but I trust the legions of people who say that The Exorcist II: The Heretic is among the most terrible movies ever made.
The Exorcist II is so bad... I don't even acknowledge it's existence. And this is coming from someone that enjoyed The Omen 4! 
The Exorcist II sucks. And this is from someone who enjoys Howard the Duck.
Yes I know that one isn't that great either, but it is better than The Exorcist II. I haven't seen The Omen 4...at least I don't think I have. I saw part of one of the sequels once that I didn't like much..though I thought it was the third one. Either way, Exorcist II sucks.
