One of best WWI aviation movies ever made. Filmed just 11 years after the end of the war Hughes purchased an entire fleet of Fokker D7 fighters from the US Govt as war surplus handed over in the Armistice agreement, and along with Sopwith's, Spads, SE5's and even a couple Handley Page bombers, 1 decked out to look like a German Gotha, Hughes had at the time the largest private air force in the world. Several pilots died during the making, as some of the crashes were unfortunately real. Hughes went to the extreme, flying and filming much of the movie himself. The plot follows two brothers, Roy and Monte who join the Royal Air Corp and a close friend of the two from school, "Karl", who gets called home to Germany, ending up as an observer on a Zeppelin. The story follows Roy and Monte and also shows a frightening look inside a real Zeppelin. That's right. Everything you see for the most part except for a few explosion scenes is real, including the lumbering Zeppelin floating through the clouds. Its an amazing glimpse into WWI era mentality as well as a feast of WWI aircraft that is the real thing, not replicas or restored even but the actual planes. Additionally, the actors are actually the pilots, everyone including the Red Baron flies their own plane. Unheard of today, but Hughes hired actors who were also pilots, most of whom actually flew in the war, mostly towards the end of course but still, real WWI pilots mixed in with 1920's barnstormer pilots and actors. Its an incredible movie, that starts off a little slow but once you get into the aerial combat and even the Zeppelin you will love it. If you loved the Blue Max you will love this too. If you didn't see the Blue Max, get that next. This is a classic, and one any WWI aviation buff ought to see.