Irrational Games has released a trailer of the first five minutes from BioShock Infinite. It's got a few spoilers, and lots of water, so don't watch if you want to wait for the game (or you get seasick easily).
It's definitely eerie. The game play starts after Booker is dropped off at a lighthouse. Things get creepier as he ascends higher, culminating with a few seconds that have a "Close Encounters of the Third Kind" vibe to it. So before you launch the video, be sure you are OK with spoilers.
BOOM video 14412