I read something more along those lines in an article about Sean Parker talking about how he was more involved with things than the movie presented. I can't find that article anymore. Here is an article that actually has a quote from Zuckerberg, stating he let Sean Parker crash at his place (although Zuckerberg himself does not say he bumped in to Parker): http://www.fastcompany.com/magazine/115/open_features-hacker...