Jennifer Lawrence and Bradley Cooper Play How Well Do You Know Your Co-Star?

Jennifer Lawrence and Bradley Cooper are making the rounds to promote their film Silver Linings Playbook. They stopped by MTV to talk to Josh Horowitz and play "How Well Do You Know Your Co-star?" They were quizzed on each other's first films and other personal tidbits such as eye color and the color gown Jennifer wore to the Oscars. When asked how many pairs of Spanx Jennifer wore under her Oscars gown, Bradley responded "What are Spanx?" Oh come on. There is no way he doesn't know about Spanx. Take a look: