I'm entering a competition at school today where the worst horror movies of all-time are aired. The last person to leave wins. This was on the site's web page, and I thought it would be a clue as to what the movie was. Since I'm not well-versed in the genre, I was hoping someone could help me out.

Also, and ideas as to what the worst horror movies of all-time are? I'd like to go in knowing what to expect. The only one I'm aware of that is REALLY bad is plan 9 from outer space. Thanks in advance for the help!