Haven't seen it, waiting for it to come out on DVD so I can get it.
As for Koreans being captured at Normandy, it's true and probably would make a good movie in its own right.
The story of the Korean that was captured is a sad one I think. Yang Kyoungjong was forcibably conscripted into the Japanese army in 1938 and sent to Manchuria and fought in the Battle of Khalkhin-Gol in which he was captured by the Soviets and sent to a POW gulag to work hard labor. In 1942 when the Germans were at the gates of Moscow, the Soviets forcibably conscripted POWs to fight for them, Yang being one of them. Yang was capture by the Germans during the Battle of Kharkov and briefly sent to a German POW camp for Soviet soldiers. Yang was chosen out of the Soviet POWs to join a battalion of ex-Soviet POWs to fight for Germany and was sent to Normandy to defend the beaches and was captured by US paratroopers. After the war, Yang settled in the US and died in 1992.

This picture is supposed to be a group of Japanese Army engineers sent to Germany to study the coastal defenses along the French coast and got caught at Normandy during the D-Day landings. They look more from the Soviet Far East to me and most likely were captured on the Eastern Front by the Germans and sent to serve in Ost battalions like Yang Kyoungjong.

ack-ack