A truely unique documentary. Not only does the director talk to some of the people responsible for mass murders of commies in Indonesia but he also enlists them in a project to make a movie about their experiences. They then go on and even mix together diffrent genres (musicals, ganster film, etc.) for their story. This gives it a rather surreal vibe but it underlines the thinking of the perpetrators. The way they openly - without regret - talk about their past actions is disturbing. Needless to say there is a climax to the movie and it's all captured with just the camera rolling. I now might also know how "sick to the stomach" sounds like. Well worth for some astonishing scenes and it only occasionally drags on.
As of now, there seem to be three different versions: a 115 minute cut for the festival release, a directors cut of 159 minutes (the one I watched and belive is really the real one (matches RT)) and another one that is unfinished and apperantly is shared in Indonesia (official screenings are not permitted there). The last one has some credits/scenes in it which were removed for the "proper" release for security reasons (many credits have been listed as anon).