Robert Downey Jr. is off to see the wizard! Robert Downey Jr. is reportedly eying the role of the Wizard in Oz The Great And Powerful. The Mitchell Kapner-scripted Oz is a prequel that takes pieces from the original L. Frank Baum Wizard of Oz books. “As conceived in Kapner’s script, the wizard is a charlatan who’s part of a traveling circus but goes on a similar odyssey as Dorothy when he mysteriously lands in Oz,” according to The Los Angeles Times. Sam Mendes is said to be the front runner to direct the project.