Iron Sky (2012)
Director: Timo Vuorensola
Stars: Julia Dietze, Christopher Kirby, Götz Otto, Udo Kier, Peta Sergeant
Pop quiz: Was Nazi Germany vanquished in 1945? Nope! The remainder of the Third Reich have just been biding their time on the moon, plotting their return to Earth for the conquest of America.
Iron Sky is not only unconventional in terms of plot, but it's one of a small group of films that have been developed via online communities, a strategy referred to as "participatory cinema." We're not sure it'll make it.