They do not. They get a lot of small details right but he is nothing like he is portrayed. I was at Facebook from 2009-2013, and while I didn’t know him personally or interact with him frequently, I was around him and saw him speak often enough to say the above with confidence.

One of the biggest errors in the movie is its portrayal of his motivation—by my understanding, he was already dating his wife (Priscilla Chan) before he wrote the first line of code for thefacebook.com.

I take no position here on his beliefs, morality, etc. I don’t actually know the man. And there’s no doubt he has some uncanny mannerisms. But the brooding antisocial fast-talking nerd is Jessie Eisenberg, not Mark Zuckerberg. Watch The Social Network and Zombieland back to back and you’ll see.