The final shot of the film, when Marianne waves to the departing Lt. Pauling and Private Mason, is reversed, or "flipped," as the 101st Airborne "Screaming Eagle" shoulder patch on the jump jacket she's wearing is on the right shoulder. The patches were worn on the left shoulder.
When attacking the farmhouse, a GI who is shot at by German machine gunners inside the house falls back against what looks like solid concrete or stone fencing, but it gives way at a seam and bows under his weight, proving it is just thin plywood with a stucco-like coating to make it look like concrete or stone.
The beginning of the movie with the opening credits shows paratroopers jumping from C-119 Flying Boxcar transport aircraft. The first C-119 made its initial flight in November 1947, over 3 years after the period the movie depicts, (June 1944)