What did Knox and Viv get for their b-day? Who terrorized the Olsens? In honor of the Jolie-Pitt twins' second birthday, see how well you know Hollywood's twin sibs!
Published: Tuesday July 13, 2010 06:00 AM EDT By: Janet Mock
More from PEOPLE
See More News
Q: 1 of 9
Copyright © 2013 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.
In partnership with AOL