What 2012 documentary about Indonesian death squad leaders is titled 'The Act of Killing'?

The 2012 documentary about Indonesian death squad leaders is The Act of Killing.

Directed by Joshua Oppenheimer with Christine Cynn and an anonymous Indonesian co-director, the film follows men who participated in Indonesia’s 1965–66 mass killings. The subjects, including Anwar Congo, were asked to re-enact their murders in the styles of films they admired, revealing how perpetrators remembered and justified their actions.

Much of the documentary was filmed in Medan, North Sumatra. Its unusual method exposes the killers’ continuing social and political power, as well as the psychological strain beneath their public boasting. The film examines a period in which alleged communists, labor activists, intellectuals, ethnic Chinese Indonesians, and others were targeted after the overthrow of President Sukarno and the rise of General Suharto’s New Order.

The Act of Killing is often confused with The Look of Silence, its 2014 companion film. The distinction is straightforward: The Act of Killing centers on perpetrators re-enacting their crimes, while The Look of Silence follows a victim’s family confronting those responsible. The film received an Academy Award nomination and won the 2014 BAFTA for Best Documentary.