But that doesn’t explain why the teenage Zuckerberg gave away his free app for an MP3 player (similar to the very popular Pandora, as it recognized your taste in music), rather than selling it to Microsoft. What power was he hoping to accrue to himself in high school, at seventeen? Girls, was it? Except the girl motivation is patently phony—with a brief interruption Zuckerberg has been dating the same Chinese-American, now a medical student, since 2003, a fact the movie omits entirely. At the end of the film, when all the suing has come to an end (“Pay them. In the scheme of things it’s a parking ticket”), we’re offered a Zuckerberg slumped before his laptop, still obsessed with the long-lost Erica, sending a “Friend request” to her on Facebook, and then refreshing the page, over and over, in expectation of her reply…. Fincher’s contemporary window-dressing is so convincing that it wasn’t until this very last scene that I realized the obvious progenitor of this wildly enjoyable, wildly inaccurate biopic. Hollywood still believes that behind every mogul there’s an idée fixe: Rosebud—meet Erica.