You have to watch this movie more than once to appreciate it, and ANYONE (aka everyone) who is one Facebook should watch it because, well, it's just the right thing to do. It makes me want to read about anyone who has ever invented anything that I have ever used. It's sort of sad to think that Facebook is a very important part of most of our lives, and keeps us connected to people we might not every be in contact with unless we had Facebook.
Go watch the movie. Then get on Facebook and write a review about it.
But first, read Accidental Billionaires: The Founding of Facebook: A Tale of Sex, Money, Genius, and Betrayal.