This movie is so damn bad. It's a complete ripoff of the South Park episode "Up the Down Steroid", the only thing not stolen was the humor. Johnny Knoxville shows how bad of an actor he is.
Miami Vice - I always check Rotten Tomatoes before I see a movie thanks to this unbelievable bore-fest.
Anything the Sci-Fi Channel makes.
Here is a movie that NOBODY has mentioned. The Chamber, the movie based off the John Grisham novel. It had Chris O'Donnell and Gene Hackman in the film and it was just an absolutely TERRIBLE movie.
Slither. Worst and weirdest movie I have ever seen.
The Killing Room. And its not even close.