The film's production is legendary for its extreme difficulties, which are chronicled in the documentary Hearts of Darkness: A Filmmaker's Apocalypse .

: Filming took place in the Philippines , where Typhoon Olga destroyed several expensive sets, and the Philippine government occasionally reclaimed helicopters used for filming to fight real-life insurgents.

: The shoot, originally planned for five months, lasted over a year, and the budget ballooned from $12 million to over $30 million . Coppola famously stated at the Cannes Film Festival , "My film is not about Vietnam. It is Vietnam". Thematic Exploration Apocalypse Now (1979) - IMDb