Okay this isnt a recommendation for a movie that features vintage clothes. But It does take place during WWII. The movie is called "Silent Night". It stars Linda Hamilton. It is the story of 3 American soldiers and 3 German soldiers who spend Christmas together in a German woman's cabin during the battle of the bulge. It is a simple little movie that some may say is sappy but I thought it was kind of touching. And it is based on a true story. If you get a chance to see it, check it out.