Captured (1959) - IWM
Only caught a little of it but it's available on the IWM site, link below or on DVD.
Object description
Film showing the Communist treatment of prisoners of war and how their methods of interrogation and attempts at political indoctrination can be resisted. The film is dramatised, but based on the experiences of members of the Commonwealth contingent of the United Nations Forces who were captured during the fighting in Korea.
Trailer:
Film can be watched on Imperial war Museum site in seven parts:
CAPTURED [Main Title]
In his book, "Soldier Against The Odds",
Donald "Lofty" Large wrote about his experience of a Korean prison camp.