Val Kilmer was initially considered for the title role, even though during filming he would have been in his late 40s, at least 20 years older than the real Manfred von Richthofen ever lived to be.
The financing for the film came exclusively from well-to-do private individuals living in the state of Baden-Württemberg and was raised by the Stuttgart-based film financing and production house Niama Film, which was established by director Nikolai Müllerschön with partners Thomas Reisser, Roland Pellegrino and Dan Maag.
When the "boys" are taxing the Curtiss Jenny around and one of them hits the haystack - the closeup of him sitting in the airplane, there is a radio antenna on the fuselage just forward of the vertical fin.
German soldiers are seen marching through Lille, France, in February 1917, with the spiked pickelhaube helmet. Actually, for front line soldiers the spikes were removed after the first few months of the war. By 1917 most German infantrymen had the new Stahlhelm 'coal-scuttle' helmet.
Manfred von Richthofen: And whatever side we fought, we all knew the risks we took. I wanted to be the best, I wanted to win and I thought I won. But I can see now, Kate. I see we've turned our world into a damn slaughterhouse. And I'm already too big a part of it. They're using my photograph to give hope where there is none. They use my name to feign immortality, whereas the reality is annihilation.