Jesse Eisenberg plays Mark Zuckerberg, the Harvard student who connects better with technology and ideas than with people.
His Post-Break-up Behaviour:
After being unceremoniously and swiftly dumped by his girlfriend Erica, Zuckerberg immediately goes home, blogs about her "false-advertising" breasts and develops Facemash, a website that compares and rates the attractiveness of female students including her. Not only that, but Zuckerberg then goes on to develop the most successful online social network of all time and, as a result, she is reminded of him everywhere. Bastard.