A Midnight Clear.
Synopsis: Set in 1944 France, an American Intelligence Squad locates a German Platoon wishing to surrender rather than die in Germany's final war offensive. The two groups of men, isolated from the war at present, put aside their differences and spend Christmas together before the surrender plan turns bad and both sides are forced to fight the other.
Broken Lullaby. (Black and white movie from 1932. This is on my favorites.)
Synopsis: A young French soldier in World War I is overcome with guilt when he kills a German soldier who, like himself, is a musically gifted conscript, each having attended the same musical conservatory in France. The fact that the incident occurred in war does not assuage his guilt. He travels to Germany to meet the man's family.
Synopsis: Howard W. Campbell, Jr., an American expatriate playwright, Nazi radio propagandist, and Allied spy, writes his memoirs during his pre-trial confinement in 1961 Haifa and learns that people are what they pretend to be.