The Act of Killing () is a 2012 documentary film directed by Joshua Oppenheimer, Christine Cynn, and an anonymous co-director. It is a Danish-British-Norwegian co-production, presented by Final Cut for Real in Denmark and produced by Signe Byrge Sørensen. The executive producers were Werner Herzog, Errol Morris, Joram ten Brink, and Andre Singer. It is a Docwest project of the University of Westminster.