I really enjoyed this movie too. It came out about the same time as Michael Bay's Pearl Harbor, but in spite of costing only the tiniest fraction of Pearl Harbor to make, it has more realistic action sequences, relying a lot less on exaggerated CGI.

I think there are hundreds of effects shots in Dark Blue World, but they used several different methods -- with a combination of new footage of real planes, models, and modified footage from The Battle of Britain.

i remember a scene at an airfield where 2 spits go flying past at low level - what a fanatastic noise!

not a bad movie at all.

got it, IMO the entire fight scenes was from the movie "Battle of Britain" but with additional effects :X