Unlike a few of the other scripts i have read, this one is very dialogue heavy and can go for pages without mentioning any action notes. I think this is so interesting, and reading it is like listening to a conversation in real time. I felt actively angry towards some of the characters just from reading their dialogue interactions and monologues. The dialogue is super sharp and witty.
The setting jumps between the present day courtroom proceedings and the past college and post-college days of Zuckerberg as he first founded Facebook. In this way, we learn from the proceedings that something has gone completely amiss and the best friend we see accompanying him along his journey has taken a 180 degree shift in opinion, and now the two partners have serious rivalry. We wait intently to find out what exactly has gone 'wrong' to ruin such a relationship.
Peter Bradshaw of the Guardian reviewed it very positively (http://www.theguardian.com/film/2010/oct/14/the-social-network-review)
'This is an exhilaratingly hyperactive, hyperventilating portrait of an age when Web 2.0 became sexier and more important than politics, art, books – everything. Sorkin and Fincher combine the excitement with a dark, insistent kind of pessimism. Smart work.'