Though it is a natural impulse to believe that the excruciating film one is watching today is on a par with the excruciating films of yesterday, this is a slight to those who have worked long and hard to make movies so moronic that the public will still be talking about them decades later. Anyone can make a bad movie; Kate Hudson and Adam Sandler make them by the fistful. Anyone can make a sickening movie; we are already up to Saw IV. Anyone can make an unwatchable movie; Jack Black and Martin Lawrence do it every week. And anyone can make a comedy that is not funny; Jack Black and Martin Lawrence do it every week. But to make a movie that destroys a studio, wrecks careers, bankrupts investors, and turns everyone connected with it into a laughing stock requires a level of moxie, self-involvement, lack of taste, obliviousness to reality and general contempt for mankind that the average director, producer and movie star can only dream of attaining.

Joel Queenan from The Guardian discusses truly awful movies