There's lots of crazy-awesome military-patterned camouflage items on the Propstore of London's website. How many are actually legit, I am not sure.
But I do know many are based off (or are modified forms of) existing camo patterns. For example, a set of "futuristic" soldier camouflage used in one of the Terminator movies is a German snow camo over-parka (with the little greenish splotches) that has been dyed a shade of grayish-purple. Neat usage of existing resources, I think.
I saw the German pattern also, and thought it was pretty cool.
Speaking of Hollywood camouflages, what pattern was used by James Cameron in Avatar? It looks a lot like some sort of HyperStealth pattern... is it possible someone with the kind of budget a Hollywood director of that calibre has, a private contract for a custom uniform could be obtained?