"Documentary" is a compilation film which includes major sequences from the world's great documentaries. Each sequence offers an important example of documentary film style, content and construction. Before each of the documentaries represented, there is a brief introduction, placing it historically. The following films are included: "Nanookof the North", "The Man with the Movie Camera", "New Earth", "Night Mail", "The River", "The City", "Triumph of the Will", "Listen to Britain", "Night and Fog", "The Return", "The Quiet One", "Sit-In", "Primary", "Hour of the Furnaces", "Harlan County, USA".