Pictures of Brad Pitt, Helen Mirren, Paul Rudd, and More on Set

Brad Pitt's Moneyball started production this week and he debuted a clean-shaven face for filming, while Paul Rudd showed up on his set with a hairy situation. Woody Allen worked closely with Owen Wilson in Paris, and Helen Mirren got in front of the camera with Russell Brand in NYC. Click through to see all the stars on set this week!