
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.

Don't Think I've Forgotten: Cambodia’s Lost Rock and Roll is a 2014 documentary film, directed by John Pirozzi, about Cambodian rock music in the 1960s and 1970s, before the Khmer Rouge regime and Cambodian genocide.

Enemies of the People is a 2009 British/Cambodian documentary film written and directed by Rob Lemkin and Thet Sambath. The film depicts the 10-year quest of co-director Sambath to find truth and closure in the Killing Fields of Cambodia. The film features interviews of former Khmer Rouge officials from the most senior surviving leader to the men and women who slit throats during the regime of Democratic Kampuchea between 1975 and 1979.

The Missing Picture is a 2013 Cambodian-French documentary film directed by Rithy Panh about the Khmer Rouge. It was screened in the Un Certain Regard section at the 2013 Cannes Film Festival where it won the top prize. It was also screened in the World Cinema section at the 2013 Cinemanila International Film Festival where it won the Grand Jury Prize. It won the Lumières Award for Best Documentary at the 21st Lumières Awards and was nominated for the César Award for Best Documentary Film at the 41st César Awards.

New Year Baby is a 2006 documentary film that tells the story of a family that survived the Cambodian genocide, and started a new life in the United States. The film was directed by Socheata Poeuv and produced by Charles Vogl. It won the 2007 IDFA "Movies That Matter" Award, an initiative of Amnesty International, as well as eight other international awards. It was aired on National PBS in 2008.

Red Wedding is a 2012 documentary film co-directed by Lida Chan and Guillaume Suon, which portrays a victim of forced marriage under the Khmer Rouge regime.

S-21: The Khmer Rouge Killing Machine is a 2003 documentary film directed by Rithy Panh. 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.

Samsara: Death and Rebirth in Cambodia is a 1989 short documentary film about the people of Cambodia rebuilding after being ruled by Pol Pot and being sent to the Killing Fields. The film was directed and produced by Ellen Bruno for her Stanford University master's thesis. In 2012, the National Film Registry selected the film for preservation.