About the film
Vietnam! Vietnam! is a United States Information Agency (USIA) film about the Vietnam War. The film, narrated by Charlton Heston, was shot on location in Vietnam in October–December 1968 but not released until 1971.
Though John Ford, the executive producer, went to Vietnam, he did not participate in production work there. Ford later did supervise the editing and rewrote the film scenario.
From the film's Wikipedia article (CC BY-SA 4.0).