No Man Is an Island

No Man Is an Island is a 1962 war film based on a true story about the exploits of George Ray Tweed, a United States Navy radioman who avoided capture and execution by the Japanese during their years-long World War II occupation of Guam. It stars Jeffrey Hunter as Tweed. The film was shot entirely in the Philippines and all the supporting actors spoke Tagalog rather than Chamorro, to the amusement of Chamorros who saw the film.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.