The Conscience of Nhem En is a 26-minute documentary directed by Steven Okazaki, telling the stories of three survivors of the Tuol Sleng Prison. Also known as S-21, Tuol Sleng was where 17,000 Cambodians were imprisoned and killed in the late 1970s. The film follows a young soldier responsible for taking the ID photos of thousands of people before they were tortured and murdered by the Khmer Rouge. The documentary was nominated for an Oscar for Best Documentary Short.