I personally look at it as pure fiction. I can't say what I felt at the time, but speaking in the here and now: it does not inform my opinions on Zuckerberg.

The movie is a masterpiece, IMO. The pacing is absolutely breakneck and impeccable, the acting is downright fantastic, the music is just immensely intoxicating and the story is captivating and compelling.

If I had to pick a movie that I deem to be perfect, it would be The Social Network. I just wouldn't consider it to be an accurate telling of the real-life events. While I am certain some, if not a lot, of what happened in the movie may have happened in real life, I would rather watch a documentary for the most accurate accounts of real-life events. Everything else...is dramatization for maximum engagement.