Eagles over London - WTH?

[Mango]

Has anyone seen this? A bad Italian movie on BoB, but it's actually very entertaining if you don't take it too seriously. There's an awesome scene showing the evacuation at Dunkirk, and the action sequences are very well done for a low budget film.

However, one thing hit me across the face like a brick. In the scramble scenes, the British airmen would jump off their rumps and race across the field to man their.... Messerschmitts!! I sh*t you not! Me109's painted in RAF colors. And once they got up in the air to intercept the invaders, who do they meet? Spitfires! In German markings!! I thought I might be having a stroke, but this was the case for the whole movie! It was so weird, I couldn't tell who was who during the combat sequences.

I have to know if this was just a major screwup, or some kind of easter egg for those of us in the know. What do you think?