The P51 was flown by Ray Hanna, now sadly deceased. He's the pilot waving. A New Zealander and one of the great display pilots. It was my pleasure to see him fly a few times.
That Japanese film about the Kamikazes seems to feature excellent CGI, almost realistic? The best I've seen. There also seems to be some model work and full size replicas. I'd love to see the film for real. It's hard to judge from youtube.
The scene from Von Ricthofen and Brown brought back memories because it was made at the same airfield I learned to fly at. As a kid I actually watched dogfights and saw formations of biplanes flying overhead. In fact it was routine. My best memory was when two came down low and duelled right in front of me near my house. It wasn't part of the film. I think they were just having fun. A fantastic moment, because it was no hold barred and right on the deck. To this day I would love to know who the pilots were. I still trace that moment to the start of my fascination with flying.