In 2003, Harvard undergrad Mark Zuckerberg creates a social networking site called Facebook with the help of his friend Eduardo Saverin. Though it turns out to be a successful venture, he severs ties with several people along the way.
Mark heads to the dorm to write a blog post about Erica; (repeats) Mark tells the Winklevoss twins' lawyer that he does not have Mark's full attention.
It Catches Up with You — Trent Reznor & Atticus Ross
Mark receives angry notes from other students while in his OS class and gets up to leave, but not before correctly answering the professor's challenging question.