Okay, so he still does some hacking - but what you're really here for is the parkour fun in this new live-action short from Devin 'Super Tramp' Graham.
It's a pretty neat little video, depicting the game's protagonist Aiden (swishy leather coat and all) chasing down a mobster through the night time streets of Chicago - and whilst it tries to hit Watch_Dogs' 'hack the city!' focus, the parkour is the star. It's still pretty cool to get some live-action promo for the game, filmed in actual Chicago, too!
It's not the first time Devin's worked with Ubisoft - he's the filmmaker behind their past Assassins Creed Parkour videos, as well as a First Person video to promote the release of Far Cry 3. If you want to see a bit more of Devin's work, you can check out his youtube channel, and see some behind the scenes footage for his Watch_Dogs shoot in the video below.