I was reading some articles on it and the continuity errors people found were funny. Stuff like using a 1908 aircraft in a 1909 scene.. that’s how hard people had to look for inaccuracies.
In addition to being happily surprised to see an Albatross aircraft, they included some stuff that had been in a biography of the Red Baron that I had recently read. There is a scene when he is home on leave and someone is looking at a photo of his squadron; she asks him questions about different people in the photo and he replies, “Dead. Dead. They’re all dead.” That story was in the biography, and at the time I read it, I thought it was very revealing about the toll the war had taken on Richthofen personally.