I believe that Twelve O'Clock High is by far the best WWII Air Bomber Combat movie ever made from the American POV. It has a all-star cast which includes Gregory Peck.
Command Decision (1948) staring Clark Gable, Walter Pidgeon, Van Johnson and Brian Donlevy is also a really good movie however, I think Twelve O'Clock High is better since it is more focused on the crews members and not the "high brass" calling the shots.
Every time I see the movie I can't help but think of what my uncle went through. He was a WWII 1st Lt Co-pilot in a B-17G and flew 30 missions out of Deenethorpe, E