Fucking awesome!! Much better than Tarantino's Basterds. And the ending is almost similar to Dr. Strangelove.

Best parts is when the UN leaders argued with the female president who looks Sarah Palin-ish about craving for Helium 3 as the source of the power supply.
Kinda like oil and they started fighting each other and blew each other's countries up with nuclear bombs! Hahah.
I almost felt having lots of giggles of the love triangle between a blackie and a hottie SS woman.. The Nazis even tried bleaching the black guy into a fucking pure whitey Nazi.. Michael Jackson reference anyone?
Really fun fun movie.. Nerdgasm overload of the awesome steampunk gadgets of their spaceships and a super flying fortress that requires cellphone USBs. Yes, you heard it just to make the engines work! lol
10/10.
P.S. There's one fave liner from the Sarah Palin-ish president that really struck true in the real world today: "Wars ALWAYS make popular presidents get re-elected again."