Apparently the film, directed by David Fincher, portrays Zuckerberg (played by Jesse Eisenberg) as something of a “borderline-autistic conniver.” The script has Zuckerberg cutting out Cameron and Tyler Winklevoss — who provided the initial funding for the site — after Facebook takes off (the twins were eventually awarded $65 million in court). The movie also shows Zuckerberg “indulging his fantasies” with a string of groupies after he quits Harvard and moves to Silicon Valley, where he built Facebook with Napster co-founder Sean Parker (played by Justin Timberlake).
"Sorkin’s screenplay suggests Parker knew Zuckerberg was driven not just by money or fame but also sexual insecurity. While he is depicted as receiving sex in bars, Parker runs the business."
Sadly for Zuckerberg, unlike a really unflattering picture, a Hollywood movie isn't something that can be detagged.
Movie depicts seamy life of Facebook boss [Times UK]