There's bad... then there is truly awful...
I get the feeling that some of you guys haven't seen truly awful movies...
Never watch Cthulu Mansion: http://www.imdb.com/title/tt0100108/
or High Crusade: http://www.imdb.com/title/tt0110024/
And no-one mentioned Surf Nazis Must Die!: http://www.imdb.com/title/tt0094077/