Iron Sky: Dictator's Cut

Sci-fi comedy directed by Timo Vuorensola. A group of German scientists send a fleet of Nazi spaceships to the far side of the Moon to set up the Schwarze Sonne military base during the final days of WWII.

Years later, with the base fully complete and having developed a powerful army, the Moon Nazis launch an attack on Earth hoping to conquer the human population.