If you don't follow the pirate sites that make screenplays available for download, Nikki Finke at Deadline.com has just made Aaron Sorkin's script for The Social Network
available online. It's an excellent example of an adapted screenplay if you want to compare it to Ben Mezrich's book The Accidental Billionaires. Biopics and "ripped from the headlines" stories are among the hardest to write, and this is a good example of both. Her article also has a good Q&A with Sorkin: EXCLUSIVE: Aaron Sorkin's Full Screenplay For 'The Social Network' – Plus Q&A