Controversial director John Cameron Mitchell has defended the graphic real-life sex scenes in new film SHORTBUS, insisting he didn't intend them to "shock". The movie, following a group of young New Yorkers, features scenes of orgies, lesbian sex and ejaculations, but Mitchell is adamant they were necessary in the film. Speaking to British magazine Attitude, he says, "I'd never seen sex used in a positive way in film before. "Either it was just porn or something negative. Surely it's more complicated than that in our own lives, so why shouldn't it be in films? "We wanted to challenge audiences but also include them. "We're not trying to shock anybody, we're not trying to f**k anyone up."