Oscar-nominated actor Jesse Eisenberg now has a brief biography at Who2. Eisenberg starred in the David Fincher movie The Social Network.Jesse Eisenberg plays Facebook fella Mark Zuckerberg. Eisenberg and Zuckerberg are not related. Their last names aren’t even the same. It just seems that way. In German, Eisenberg means “Iron Mountain,” but Zuckerberg means “Sugar Mountain.” Go look it up (I won’t).