With a considerable cult following already it's hitting - and probably karate chopping - UK DVD on the 18th April through eOne.
You can find out more via Cult Labs here and check out the links below for lots more coverage from ScreenAnarchy.
Special Features include: Oddities and Bloopers; Home Alone With Otto; Interviews plus Fight Choreography, Music Video, Skycar and Torpedo featurettes; Bonus Scenes (Action Figures, Life On A Grassy Island, Wingsuits, Pyrotechnics).