I think some of you don't really know what a bad movie is. I can see were many of the above mentioned movies would be in the "I didn't like that at all" category, but I find it hard to believe they fall into the "bad". From Bijo's first post:

Quote Originally Posted by Bijo
...this thread is only about bad movies. And I mean REALLY bad movies. B-movies and lower than that, that you've seen or know of. Movies of which you might think they shouldn't even be in existence. Or movies you haven't seen (yet), but know they're worthless because you've seen the front poster (and it says a lot about them).
Surely we can do worse than The Hulk, Spiderman, 300, etc...

Another movie that stinks up my bad movie list is a turd called Sorceress from 1982 - a fantasy film trying to cash in on the Dungeons & Dragons craze of the time. It starred Playboy playmate twins in the leading roles. Now, you'd think this in itself would give the movie a couple of pair of redeeming points, but you'd be sadly mistaken. The movie opens with an exciting horseback chase scene. All is well until, about 10 seconds into the movie, the first actor opens his mouth and delivers a line worse than most 8 year olds could do. My buddies and I immediately looked at each other and mouthed "Oh no!" To backup my claim, here is another reviewer's opening comments to a review on this movie (from IMDB.com link above):

Quote Originally Posted by Another Opinion
I initially purchased this movie, along with two others, in a used bookstore's `Our Owner Is Dead Sale,' for the hefty price of one dollar. One must beg the question, of whether perhaps I got ripped off.

Sorceress is bad. Astronomically bad. Not the kind of bad that we're used to. No, not mediocre Hollywood bad. It's so bad, it's almost a religious experience.