Because holy shit, what the hell is David Cage doing!?
Sony showed this trailer at the Tribeca Film Festival - as well as an hour of footage from the game - and man... I'm really impressed. I can see this being the first game I switch my PS3 on for since Uncharted 3.
That said, your mileage may vary. I ended up really loving Heavy Rain (dodgy accents aside), and this basically looks like a nicer looking, Ellen Pagier version. And it looks insane! It's out in October, apparently.