As I've said here before (fairly often), The Eagle and the Hawk
is one of my favorite WWI aviation films from this era. Besides John Monk Saunders, the screenplay was co-authored by Bogart Rogers
, an American ace who had flown SE5a's in No. 32 Squadron, RAF. Thus, he was well-informed about Yanks serving in the RAF.
During his training in Middleton, Ayr, Rogers had the benefit of hearing several instructional talks by James McCudden
. He greatly admired McCudden, and it's obvious that he was partly 'inspired' by Mac's Five Years in the Royal Flying Corps
as he was writing the story for this movie. The lead character (Frederic March) encounters a superb German pilot that he refers to as "Greentail" several times
. When March finally turns the tables and shoots "Greentail" down, he is surprised to learn upon seeing the German's body that he was "Voss - the great ace!". In the ImdB listings, he's credited as "Arnold Voss," even though he has no lines..!
Furthermore, it's one of the few films that concentrates on two-seater operations, and has some fairly advanced (for the time) things to say about the psychological effects of war on airmen, etc.