Apparently Martin Campbell asked costume designer Ngila Dickson to come up with something radically different than the spandexed, fish-scaled superhero costumes we so often see in movies. What she came up with was so radically different it could only be created in a computer. Campbell reportedly wants the alien suit to look alive so to speak and the CG effects will allow them to do that.
Without knowing how the suit will look, I have to say it’s a pretty clever way to go about the design. The actor isn’t constrained by wearing this big ole rubber suit (though I suppose he is constrained by wearing a suit with little LED lights all over it) and it allows them to tweak the look in post-production. But how will it look when they put it all together? Will it look natural? I guess we’ll have to wait for the first trailer to find out…