Code Name: Emerald (1985)

"Code Name: Emerald" is a 1985 Action movie directed by Jonathan Sanger and starring by Ed Harris, Max von Sydow. In preparation for Operation Overlord, the Allied invasion of Nazi occupied territory, the 'overlords' were the few Allied agents who knew the details of the operation. When one them is captured by the Germans, a double agent must infiltrate occupied Paris, with the help of a high level German officer and the French Resistance.