17. Shortly after receiving an Academy Award nomination for his performance, Jesse Eisenberg hosted Saturday Night Live: Jesse Eisenberg/Nicki Minaj (2011). During his opening monologue, he was interrupted by the real Mark Zuckerberg.
18. On the DVD commentary, Armie Hammer and Josh Pence recount meeting the real Divya Narendra and taking him to meet Max Minghella, who plays him in the film. As a practical joke, Hammer and Pence told Narendra to talk in an Indian accent, as Minghella had been worried about his portrayal and wanted it to be as accurate as possible. Narendra played along, much to the horror of Minghella. Hammer recalls, "Max just turns white and he just starts going, 'I'm so sorry! I'm so sorry! I'm so sorry!' And profusely apologized to him, for, like, thirty minutes."
19. Justin Timberlake lost 15-17 pounds for his role in this movie. He felt that making himself look skinnier would make him look younger.
20. Despite the "Erica Albright" subplot and Mark's depiction in this movie as being generally maladroit with women, during much of the period covered by the film, the real Mark Zuckerberg was actually dating fellow Harvard student Priscilla Chan. Chan, who was one of the very first people ever to join Facebook (on February 5, 2004), graduated from medical school in 2012, the same year that she and Zuckerberg got married. They had their first child, daughter Maxima Chan Zuckerberg, in 2015.