Sony Pictures has launched an official site for
The Social Network, an upcoming film about the founding of Facebook whose cast includes David Selby. It's scheduled for an October theatrical release. The site includes the first trailer for the film. Unfortunately, it does not show any scenes, but audio clips are included, and David Selby's voice shows up at least twice:
http://500millionfriends.com or
http://www.thesocialnetwork-movie.com/If you prefer to access the trailer directly through YouTube, it's here:
http://www.youtube.com/watch?v=mWoUgftTj3Y