You seriously can't fault Irrational and 2K Games for pushing some serious back-story and atmosphere building marketing for Bioshock Infinite. Take this new trailer for example...
We say 'Trailer' though, to be honest, it trails no actual game-play at all. What it seeks to do is bring a 'factitious' reality to the floating city of Columbia and Zachary Comstock, the mind behind it. Let's hope the final game can live up to it.