I caught a screening of this movie at Netroots Nation two weeks ago. I'd meant to see it at SXSW but never got the chance. It's an extraordinary story of an influential and prescient man named Josh Harris who was far ahead of his time when it came to how people will connect and represent themselves in a totally networked world.
He basically foretold the rise of services like YouTube and UStream and his story is one of both wonder and caution.
Ticket info is here: http://bit.ly/f8ztr