Bioshock Infinite Gameplay Footage

The much-trailed Bioshock Infinite footage that was shown behind closed doors at GamesCom last month has finally made it online.
Officially, the video is available through Xbox LIVE today and released online tomorrow, but of course this means that several diligent persons have already uploaded it to youtube and various other sites.
Look down to watch Booker DeWitt (voiced, it seems, by Stephen Russell – or Garrett from the Thief series,) stumble around the madcap, floating world of Colombia in search of the mysterious Elizabeth. Social commentary, anarchists, angry crows and nose bleeds await.