In 2003, Harvard undergrad and computer programmer Mark Zuckerberg begins work on a new concept that eventually turns into the global social network known as Facebook. Six years later, Mark is one of the youngest billionaires ever, but his unprecedented success leads to both personal and legal complications when he ends up on the receiving end of two lawsuits, one involving his former friend.

Jesse Eisenbergas Mark Zuckerberg
Andrew Garfieldas Eduardo Saverin
Armie Hammeras Cameron Winklevoss / Tyler Winklevoss
Justin Timberlakeas Sean Parker
Rooney Maraas Erica Albright
Max Minghellaas Divya Narendra
Brenda Songas Christy Ling
Josh Penceas Tyler Winklevoss (Body Double)
Rashida Jonesas Marylin Delpy
John Getzas Sy
Jeff Cronenweth