Chinatown is a American neo-noir film, directed by Roman Polanski. The film features many elements of the film noir genre, particularly a multi-layered story that is part mystery and part psychological drama. It stars Jack Nicholson, Faye Dunaway, and John Huston, and was released by Paramount Pictures.

The story, set in Los Angeles in 1937, was inspired by the historical disputes over land and water rights that had raged in southern California during the 1910s and 20s, in which William Mulholland acted on behalf of Los Angeles interests to secure water rights in the Owens Valley.

The film was nominated for eleven Academy Awards, winning in the category of Best Original Screenplay for Robert Towne. In 1991, Chinatown was selected for preservation in the United States National Film Registry by the Library of Congress as being "culturally, historically, or aesthetically significant."