A 1979 American epic psychological war film directed and produced by Francis Ford Coppola. It stars Marlon Brando, Robert Duvall, Martin Sheen, Frederic Forrest, Albert Hall, Sam Bottoms, Laurence Fishburne, and Dennis Hopper.
Apocalypse from here.
""Charlie Sheen mentions his father's movie, 'Apocalypse Now,' in comparison to 'Platoon.' They later discuss its making in detail."