I've mentioned this movie before, but it bears repeating. It premiers on March 4, 2012, but it's already received outstanding reviews at the Berlinale. To quote one critic, "it's like a heavy metal band just arrived at the Berlin Philharmonic in the middle of Verdi's Requiem and stole all the applause."
You should also read this article on The Daily Mail. It talks about both Iron Sky as well as WWII UFO conspiracies. Oh, and Bradgelina.