La Grande Illusion
"La Grande Illusion", a 1937 film by Jean Renoir, depicts the story of two French officers of the First World War sent to a PoW camp in Germany. They decide to escape by digging a tunnel in perilous conditions. After several aborted escape attempts and repeated transfers, they are placed in a mountain fortress. The story does not portray negative characters: soldiers or guards, the Germans are good guys, while the Allied prisoners perform their duties conscientiously but without excessive heroism. As shown, the camps of 1914-18 (at least the officers' camps) do not give the impression of a frightening inferno.