In 2005, Star Wreck, a full-length science fiction parody was released for free on the Internet and almost immediately gained a cult following. Now Star Wreck masterminds Samuli Torssonen, Timo Vuorensola and Jarmo Puskala are planning to unleash space Nazis on an unsuspecting public.

With more money and experience under their belts, they can afford things their first movie never dreamed of - like sets and real actors.

Producers will begin filming the Iron Sky feature film in Frankfurt next spring, and they hope to have the movie finished by the end of 2010.

But while Star Wreck was a practically zero-budget flick filmed against a bluescreen in someone's living room, Iron Sky has around five million euros to play around with. This means they can build real sets.

"The intent is that everything within around five metres of the actors is real," explains co-producer and Star Wreck mastermind Samuli Torssonen. "Of course we have to try and save money, by building around half and mirroring the other half with computer graphics."

Iron Sky is set in the year 2018. The world must suddenly face an attack by Nazis from space, who escaped the end of World War II by fleeing to the moon in a super-secret project.