 USA Today | Casting Call: Robert Downey Jr. To Play Wizard In New 'Oz' Prequel? Access Hollywood Robert Downey Jr. gets hyped up for 'Sherlock Holmes' at Comic-Con in San Diego on July 24, 2009 Robert Downey Jr. takes the stage at the 'Iron Man 2' panel at Comic-Con in San Diego on July 25, 2009 Robert Downey Jr. speaks onstage at Spike TV's 2009 ... Robert Downey Jr. to star in 'Wizard of Oz'? Robert Downey Jr to play Wizard of Oz? Robert Downey Jr., Sam Mendes, Adam Shankman All In The Running For 'Wizard Of ... |