An excerpt from an extensive review – check the link below, and seriously consider subscribing to The New Yorker (conveniently now also available in an iPad app)
Accuracy is now a secondary issue. In this extraordinary collaboration, the portrait of Zuckerberg, I would guess, was produced by a happy tension, even an opposition, between the two men—a tug-of-war between Fincher’s gleeful appreciation of an outsider who overturns the social order and Sorkin’s old-fashioned, humanist distaste for electronic friend-making and a world of virtual emotions. The result is a movie that is absolutely emblematic of its time and place. “The Social Network” is shrewdly perceptive about such things as class, manners, ethics, and the emptying out of self that accompanies a genius’s absorption in his work. It has the hard-charging excitement of a very recent revolution, the surge and sweep of big money moving fast and chewing people up in its wake.