 FACT: The movie takes place in late 1916 and early 1917. The Fokker  Dr.I triplane didnt appear until September 1917. Likewise, the  Bristol Fighter and SE5a werent available until after the time  period depicted in the movie. Also, the paint schemes shown on the  Dr.I triplanes are wrong. The crosses werent painted on the upper  surfaces of the lower wing and the all