There are quite a few very expert and quite excellent reviews of this film. I am only writing to add that this film is worth seeing in spite of its flaws. Any film that shows these beautiful vintage biplanes in flight as well as this one does deserves to be seen. The aerial footage alone outweighs any other consideration. The dogfights are well-filmed and exciting. My weakness is in my great admiration of the design and technology of the period biplanes and triplanes. If your heart doesn't respond to the magnificent old planes, then you might just want to skip this film. Another reviewer mentioned thrilling to the sight of the flying circus. Yes, to that. And the rest of the film gets better as it goes along.
Review of Von Richthofen and Brown
