David Fincher's The Social Network, with a script by the monarch of machine-gun banter, Aaron Sorkin (The West Wing), is a smart, funny film that tells the story of how Facebook came into being. It's a comedy of manners about a desperately uncool Harvard undergrad who creates the most popular club in the world and declares himself president.
Jesse Eisenberg plays Mark Zuckerberg, who has been denied entrance to the most coveted Harvard clubs, probably due to both his lower-middle-class background and his chilly, aggressive personality. He and his friends, who were only able to pledge the sole Jewish fraternity on campus, don't have a chance at dating the most attractive girls. When Mark's Boston University girlfriend (Rooney Mara) breaks up with him, he gets drunk and delivers his revenge, an acrid post about her on his blog.