Les armes miracles d'Hitler
From airplane engines to rockets to new types of guns, the Nazis innovated in many military areas. At first it was to equip the army for Hitler's campaigns, and then, as the war went on, they invented bombs and cannons in order to defend the fatherland from the Allies.
Starring Michel Benichou, Karl Heinz Bringer, Gérard Chevalier
Watch "Les armes miracles d'Hitler" on Amazon released in 2009. It's a documentary movie, and has a rating of 5.9 out of 10 from Imdb which is fairly okay for this kind of movie, and is currently only available for purchase or rent.