Though I've seen his pictures, I hadn't really thought much about the way he looked.
Not until watching 115+ minutes of the movie later...and then googling about the real Mark Zuckerberg, looking at his picture, and realizing that he looks so similar to this kid:
Friends fans, I'm sure y'all remember Owen...the adopted child Chandler outed in the episode, "The One Where Ross is Fine" in Season 10.
The kid is played by Daryl Sabara. And of course, he's a lot older now. And is probably the same age as the real Zuckerberg.
Incidentally, I don't know if you've heard since it's been several years ago....but do you remember Owen's mom? Do you remember her, the lady in pink?
D'you know she passed away in 2003? You can google her name, Kellie Waymire, and read all about it.