A detail in David Fincher’s The Social Network many have missed happens right after Mark Zuckerberg tells Eduardo Saverin about his idea for what will eventually become Facebook. Eduardo tells Mark he has been punched by the Phoenix, a final club at Harvard Mark desperately wanted to be a member of. Eduardo senses the awkward and tense air and comments that it was probably due to “a diversity thing”, which Mark dejectedly agrees with. As Eduardo goes back inside, he passes through a door specifically marked “PRIVATE ENTRANCE”, a huge signifier of the dissolution of their friendship to come, due to the jealously Mark feels as Eduardo becomes wrapped up in the exclusivity of the final club that doesn’t give Mark the time of day. Zuckerberg is left alone nursing his wounds while Eduardo heads back in without much of a second thought, and we already see a crack in the mold.