actually dark blue world was quite a decent movie. A bit melodramatic at some time but not that bad.

Good ww2 air combat movies (list not in order of preference):

Battle of Britain
The Tuskegee Airmen (Die Ehre zu Fliegen in German), a real good movie about the red tails.
Memphis Belle

There is an old German movies from the 50s or 60s about Marseille (http://en.wikipedia.org/wiki/Der_Stern_von_Afrika). I haven't watched it.