S21: The Khmer Rouge Death Machine

This documentary, directed by a survivor of the genocide, chronicles the systematized murder perpetuated by the Khmer Rouge in Cambodia from 1975 to 1979, specifically the torture and killing of the educated classes in the notorious S-21 prison, which is now a museum. But this film is not about statistics and generalized history. Instead, it focuses on two survivors who return to the prison, coming face-to-face with some of the guards who insist that they were only following bureaucratic orders.