Well, it is made pretty much by the same crew as Starwreck which was a parody of famous space series Star Trek, Babylon 5 etc.
http://www.youtube.com/watch?v=p8oWyU-YWDQNot sure about Iron Sky but the budget to make the Starwreck was aimed to be zero, not sure how much it cost in the end but not much and I expect the budget for Iron Sky is probably quite low too, so it's nothing like a "Hollywood block buster".
Or does it seem like politically inappropriate even if it is a parody?

-C+