The rise and legal fallout surrounding Facebook and its creator Mark Zuckerberg is explored to compelling effect by Fight Club director Fincher and West Wing writer Aaron Sorkin. Jesse Eisenberg plays the Harvard computer whiz who turned a modest online community into a global phenomenon. But how much of it was his idea? Andrew Garfield feels the sting of betrayal as Zuckerberg’s ex-best friend and bank-roller Eduardo Saverin while Justin Timberlake sniffs a golden opportunity as Napster founder Sean Archer. The most relevant morality tale of the internet age? Click to confirm.