For all of who participate on Facebook, it is a fascinating look at how it came to be, and in such a short time.

Rating: Null/10 (17 January 2011)

As several of the actors and filmmakers comment in the DVD extra, this is NOT a movie about Facebook, that would be 4th or 5th on the list of things it is "about." As they go on to explain, it really is about college friends, how that friendship shaped the creation of social networks, and how ambition and disagreements led to lawsuits.
Jesse Eisenberg is Mark Zuckerberg in college at Harvard, a programming genius who was also a social misfit. It seems that the real Zuckerberg is either quite different from that, or he has blossomed quite well in the 7 or so years since the period this movie covers. But Eisenberg does a good job, and he is of course bound by the script, which is very interesting, and what the director wanted in the way of a portrayal.
Andrew Garfield is good as Eduardo Saverin, Zuckerberg's close friend and co-founder of Facebook as its CFO and 30% partner. The movie portrays Saverin's getting into a Harvard organization as the catalyst for Zuckerberg's eventual snubbing of Saverin, an idea that Zuckerberg says is totally fabricated.
Justin Timberlake is also good as the Napster guy who ends up influencing Zuckerberg's moving to California, and getting at odds with Saverin.
As the story is developed in a rather linear time line, it also often cuts forward to the time when depositions were being taken and various parties were suing Zuckerberg for theft of ideas and breach of contracts. The film is accurate from the point of view that it reflects the testimonies and statements faithfully, but as Zuckerberg says in the movie, people lie under oath. Still, it is a matter of record that he paid $Millions as a result of the suits, but he is still the youngest Billionaire.
Very interesting movie, we will probably never know the truth. But it isn't possible to visit your Facebook page and look at it the same way after seeing this movie.