Mark Zuckerberg -- What, Me Worry?

10/11/2010 9:00 AM PDT
Facebook co-founder/ alleged rip-off artist/ movie villain/ movie hero Mark Zuckerberg went on a walk with his girlfriend Priscilla Chan in Palo Alto yesterday like he didn't have a care in the world.

Meanwhile, the movie about his life -- "The Social Network" -- was #1 again at the box office ... despite the fact that Mark's people insist it's pure "fiction."

You know what's cooler than this photo? A billion dollars.