Hearts of Darkness: A Filmmaker's Apocalypse is a 1991 American documentary film about the production of Apocalypse Now, a 1979 Vietnam War epic directed by Francis Ford Coppola.

Apocalypse Now is a 1979 American epic war film produced and directed by Francis Ford Coppola. The screenplay, co-written by Coppola, John Milius, and Michael Herr, is loosely based on the 1899 novella Heart of Darkness by Joseph Conrad, with the setting changed from late 19th-century Congo to the Vietnam War. The film follows a river journey from South Vietnam into Cambodia undertaken by Captain Willard, who is on a secret mission to assassinate Colonel Kurtz, a renegade Special Forces officer who is accused of murder and presumed insane. The ensemble cast also features Robert Duvall, Frederic Forrest, Albert Hall, Sam Bottoms, Laurence Fishburne and Dennis Hopper. Harrison Ford, who at the time of filming was not yet a major star, appears in a minor role.