The movie had extraordinary detail. Pitt's character carried a beat-up S&W 1917 .45. The grips had been replaced with plexiglas and had a photo of a pinup or girlfriend under them. That was common. US Army Air Corps mechanics would take broken aircraft windshields (there were plenty), manufacture custom grips from them, and sell or trade them to the GI's. I saw some made for captured Lugers.