All of the members of the Norwegian resistance movement (the Ling) are ambushed and wiped out by the Germans on their way to attack the defences. This would suggest that Erik Bergman (played by George Chakiris) must have broken under torture and given the information about the upcoming attacks to the Germans - allowing them to know where and when to ambush the resistance men. So the Wing Commander's murder mission was a waste of effort (or at least too late).

Vintage aircraft fans do not hold this film in very high regard. During filming a perfectly serviceable Mosquito was wrecked deliberately for a crash scene. Considering the scarcity of flying Mossies it's considered almost a criminal act in the vintage aviation world.

We can see that FLTLT 'Digger' Gillibrand (John Meillon) is wearing a uniform that is of a much darker blue than the other pilots. Australian Air Force uniform of the era was dark blue rather than the RAF blue-grey; and purportedly made from much better material as well.