Very interesting and informative breakout of the roles, Scott. But I gotta disagree about the role of Eduardo. I think that Eduardo is an ally, not a mentor, a friend whose loyalty Zuckerberg betrays. I would argue that if Zuckerberg has to have a mentor, then the role belongs to Sean Parker. Parker, unlike Eduardo, unlike anyone else in the movie, has real world experience building a business model for the new economic world order ushered in by the Internet. Yes, Sean lost the legal battle with Napster -- but, as he has bragging rights to point out in the movie, he won the war. His Big Idea for downloading digital music destroyed the business model of the music industry. And that Big Idea is now destroying the old business model for the film industry, building a new one. So in the movie, Sean Parker is both a Trickster and a Mentor. He is the character with the temperament and experience to know how to operate in a tricky business where the conventional business rules (that Eduardo wanted to play by) no longer apply. (And I believe the Parker character can also be viewed as the target of the projection of Zuckerberg's Shadow -- but then I am someone who is inclined to go off the deep end of Jungian depth psychology.) My other point is that I think that Zuckerberg's character is appealing not in spite of his flaws but because of them. Millions of kids can identify with those flaws. Like him, they don't have the brawn to make the team, the connections to belong to the In Group, the social skills to get the Girls. All Zuckerberg has going for him is the brains to write code. Code that has made him a billionaire multiple times over. Code that is revolutionizing the way the entire world works and plays. The Age of the Internet is the Age of the Revenge of the Nerd. People like Mark Zuckerberg and Sean Parker are its heroes, its role models.