There were no substitutions in football at that time.
Space Boots -- Low-cut (below the ankle) football boots/ soccer cleats were not invented until 1954, ten years after this movie takes place. The boots worn in the game are very modern, with the collared pair shown at 1:48:20 coming out at least 70 years after the game.
Which Way Did He Go? -- Kick-offs could not go backward in 1944. First pass had to be forward from 1883-2016.
Clothes Maketh Man -- The goalkeeper is wearing the same jersey as his team, which was (and still is) against the rules.
Which Way Did He Go? -- Kick-offs could not go backward in 1944. First pass had to be forward from 1883-2016.
Clothes Maketh Man -- The goalkeeper is wearing the same jersey as his team, which was (and still is) against the rules.
At 1:47:00, the Nazi team is preparing for a penalty kick. When the player bends down to set the ball, the Nike swoosh is visible in the stitching of his cleat. Not only did Nike not exist, but the swoosh wasn't used until 1971 when the company changed its name from Blue Ribbon Sports to Nike.