I can't believe I forgot one. This game I'm going to mention, besides being one of my favorite titles in gaming history, is all but tailor made for film. Hell, it could probably be turned into a series. That game, is Homeworld. For anyone who's played it, they know of what I speak. The writing in that game was utter brilliance.
Oh wait.....it just occurred to me. Someone already made a TV series based on this game. They gave it an odd title though. For some reason, they called it Battlestar Galactica......