There was a WWI movie that won an oscar for best picture, I think it was called Wings, It was a silent film and was incredible. Mid twenties if I recall correctly (gotta love AMC would never known about it if not for that).
Flying Leather Necks
Of course Tora, Tora, Tora
MIdway were both great as well.
I hate the movie but Pearl Harbor did have the most realistic looking dog fight scenes I have seen, only reason worth watching.