Unintentional Comedy refers to any type of performing art that fails so bad it becomes a piece of comedy gold. This phenomenon is most regularly seen in the movie genre but can apply to music, theater or even visual art.
Prime examples of Unintentional comedy are movies such as COMMANDO, Total Recall, Rambo 4 and The Transporter. These movies were all intended as serious works but in the end are so poorly made or acted that their failure has amused the masses, making them cult hits. A musical Example is Lordi, a band who obviously think they are hardcore, but could be outmanned by a female kitten.