Are you a young actor? Congratulations: David Fincher has added you as a friend on his Facebook movie, The Social Network. The Playlist dug around and found confirmation from Aaron Sorkin that Max Minghella (left), Rooney Mara, Armie Hammer, Brenda Song and many more have joined the cast of the Jesse Eisenberg-topped drama. No word yet on who each of them will be playing; for that, I suppose we'll have to wait for the results of their "Which Social Network Character Are You?" quizzes. [The Playlist]