And it seems to be working.
Here's the description of the film from the Iron Sky website:
The Story of Iron Sky
Towards the end of World War II the staff of SS officer Hans Kammler made a significant breakthrough in anti-gravity.
From a secret base built in the Antarctic, the first Nazi spaceships were launched in late ‘45 to found the military base Schwarze Sonne (Black Sun) on the dark side of the Moon. This base was to build a powerful invasion fleet and return to take over the Earth once the time was right.
Now it’s 2018, the Nazi invasion is on its way and the world is goose-stepping towards its doom.
At some level you have to love the idea of flying saucers filled with Nazis attacking the Earth...one of those concepts that is so dumb it just might make a great B movie. But check out the trailers yourself and look around the site. A fascinating alternative to the Hollywood machine....
(see also the Wired Magazine article.) Thanks to Kevin Kozoriz for bring this to my attention.