Link to watch: <a href="http://www.facebook.com/darkknight" rel="nofollow">http://www.facebook.com/darkknight</a><p>Fascinating move by both Warner Bros. and FB. I wonder if this is streaming from FB datacenters or Warner Bros? No wonder Apple hates FB, they just went up against Apple, Netflix, Amazon and Google/Youtube (EDIT: Also, Hulu) in the video rentals space, and social is one aspect that affects movie watching the most. Very smart.<p>EDIT: Ooh, they also launched an iOS app that allows you to buy the movie: <a href="http://itunes.apple.com/us/app/the-dark-knight-app-edition/id401016418?mt=8&ign-mpt=uo%3D4" rel="nofollow">http://itunes.apple.com/us/app/the-dark-knight-app-edition/i...</a><p>Also, Imagine being able to use facebook credits earned in Farmville to rent movies...