The year following Indonesia's 1965 coup saw the murder of more than a million communists" (in fact, enemies of the military, including ethnic Chinese, intellectuals, [and] union members). Anwar [Congo], head of a gang of killers called the Frog Squad, dispatched about 1,000 himself. He is the subject of "The Act of Killing", a documentary that invites Anwar and his friends to dramatise their crimes, to boast about their starring roles in a genocide. Director Joshua Oppenheimer began the film a decade ago by interviewing survivors. But when, at the suggestion of one of them, he turned his camera on the perpetrators, he found they were more than eager to reveal the history themselves. The killers simply adapted a story they had been telling each other for decades: that they were the ruling class, so their acts were heroic. For gangsters like Anwar, Oppenheimer was offering the chance to make a "beautiful family film" - a celebration of their rise, inspired by the Hollywood movies they loved. "They're desperately trying to run away from the reality of what they've done," says Oppenheimer, a 38-year-old Harvard graduate now based in Copenhagen. "You celebrate mass killing so you don't have to look yourself in the mirror in the morning and see a murderer. You keep your victims oppressed so that they don't challenge your story. When you put the justification - the celebration - under a microscope, you don't necessarily see a lack of remorse, but you start to see an unravelling of the killers' conscience. So what appears to be the symptom of a lack of remorse is in fact the opposite. It's a sign of their humanity."