DAT FACEPretty much anything by Blizzard.  Those Diablo, D2, and StarCraft videos?  Their trailers?  Holy fucking shit. I haven't played StarCraft II, but when I watched (at least) one of the trailers, it looked better than most movie trailers I'd seen.

But I'm going to have to go with Max Payne.  The atmosphere and graphic novels?  Fantastic.  The Max Payne games are VERY responsible for me being such a film noir whore.