A harrowing reckoning takes place in The Act of Killing, a new documentary that addresses the political mass murders carried out in Indonesia in 1965-66 by interviewing the unapologetic killers, who still hold positions of power. This is no talking-head piece. Prompted by director Joshua Oppenheimer, the men reenact the atrocities and even stage musical fantasy sequences in which they appear as heroes. When this elaborate artifice finally forces out the conscience of one murderer, the moment feels less like biblical justice than an exorcism. On disc now. (Final Cut for Real)