Let me just preface this by saying if you weren't already excited for the upcoming Bioshock Infinite, the following video may just make a believer out of you. Irrational Games recently released footage of their E3 2011 gameplay demo in its entirety, and it's somewhat of a doozy.
So pull up a chair (or stand up, if that's your thing. Weirdo.) and soak in 15 solid minutes of Bioshock Infinite.
Bioshock Infinite E3 2011 Demo (contains some violence and mild language)