Men Behind the Sun (1988) is a War, History, Horror film that follows japanese troops round up Chinese and Russian prisoners of war and take them to unit 731, where they're horribly tortured and experimented on to test new biological weapons. Men Behind the Sun is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 6.2 out of 10 from 251 votes. Fans of war movies may also want to explore similar titles below.