Question: What is the place of birth of the director of film S-21: The Khmer Rouge Killing Machine?
Sentence (from "S-21: The Khmer Rouge Killing Machine"): Rithy, himself a survivor of the Khmer Rouge, brought together two former prisoners of the regime with their former captors at Tuol Sleng Genocide Museum, the former Security Prison 21 (S-21) under the Khmer Rouge.
Relevant evidence: No