The best exchange of the movie was along the lines of
Laywer: So he put in $1,000 and then deposited another $18,000 for a total of $19,000.
Zuckerberg: Wait a minute
Laywer: Is there a mistake in what I just told you?
Zuperberg: I'm just checking your math . . . yep $19,000 I get the same thing
I couldn't find the exact quote online
I also loved
Tyler Winklevoss: I'm 6'5", 220 pounds, and there are two of me!