King of Cannes : Film-maker Stephen Walker wanted to make a documentary about the Cannes Film Festival. He needed to find four young, untried, untested, obsessive and possibly unhinged directors whom he could follow in their quest for fame and glory. Over six months, he met hundreds of film-makers from all over the world. Some were clearly talented. A few seemed certifiably insane. What united them was a passion for making movies and an inhuman determination to make their mark - whatever the cost.