Other: As the special bombs are being towed onto the base, a modern white saloon car is seen driving past on the road.

Factual error: A modern (1950's) motorcar is seen parked behind the Mosquito aircraft after they have had their special bombs loaded and the crew are just about to board prior to taking off on the mission.

Factual error: The Norwegian resistance fighters are in their truck and being chased by a German armoured car. The armoured car used is a post-war (1950s/60s) British Army Saracen APC.

Factual error: When the first Mosquito aircraft crashes during training the two RAF officers watching from the ground get in their vehicle to rush to the crash scene. The vehicle they get into is a post-war (first designed in 1948) Land-Rover.

Other: During the practice bombing runs the bombers have to bank hard to the right. The back projection shows the planes banking to the left.

Factual error: In all the scenes in which the '109s' attack, you can see that they are not Messerschmidt 109s but the ME108, a civilian/training aircraft (the 109's predecessor).

Revealing: There is a British pilot who tries to pull rank in order to chat up Erik's sister. He has a hook for a hand, but the arm isn't any shorter. He is holding onto the hook under his cuff.

Continuity: As Wing Commander Roy Adams exits his plane, after crash landing, his jacket catches on fire. As he runs across the wing it goes out. After he jumps off the wing it's on fire again.

Revealing: in the scene where Flight Lt Gillibrand (the Australian) is making his practice bombing run there is a shot of him in the cockpit with the camera pointing in his face. He is shown turning the control wheel hard to his right. But the rear screen projection shows a slight left bank.