July 17, 2012 (11 images)

Actor Will Ferrell (L) tries to get a clydesdale horse to take a carrot from his mouth as co-star Zack Galifianakis stands near during a promotional stop for their new movie The Campaign, at Kiener Plaza in St. Louis on July 17, 2012. UPI/Bill Greenblatt

Federal Reserve Board Chairman Ben Bernanke testifies on the Board's Semiannual Monetary Policy Report to Congress during a Senate Banking, Housing and Urban Affairs Committee hearing on Capitol Hill on July 17, 2012 in Washington, D.C. UPI/Kevin Dietsch

Ryan Guzman, a cast member in the music romance drama motion picture "Step Up Revolution", attends the premiere of the film at Grauman's Chinese Theatre in the Hollywood section of Los Angeles on July 17, 2012. UPI/Jim Ruymen

Actress Sharni Vinson attends the premiere of the music romance drama motion picture "Step Up Revolution", at Grauman's Chinese Theatre in the Hollywood section of Los Angeles on July 17, 2012. UPI/Jim Ruymen