Hollywood is home to a surprising number of "Renaissance" men and women. Those who seem to excel at any artistic endeavor they decide to dip a toe into. Take Barbra Streisand, for example: she's an Oscar-winning actress and director, a singer and a dancer, a star of both screen and stage. How much talent can one person have?
Apparently, a lot! She's not the only star to excel in front of the camera as well as behind it. An incredible number of actors have won Oscars for movies they both starred in and directed. Click through the gallery to learn more about these Hollywood powerhouses.