I really was hoping to have it b&w just it just didn't end up looking as nice as it does with the blue tint. I decided to do it that way after watching both sin city and casino royale.
b&w intro to a full colour movie / pre mian titles action scene - casino royale. b&w environment where the odd thing here or there is colour - sin city
I also did it to be sneaky in order to hide some things.