Celebrities on Set For the Week of September 02, 2011

Actors and actresses were busy around the continent working on exciting movie projects this week. Cameron Diaz joined Whitney Port and Cheryl Cole on the set of What to Expect When You're Expecting in Atlanta, while Blake Lively returned to NYC to shoot Gossip Girl. Paul Rudd rode a bike in LA for This Is Forty, and John Stamos hung around Toronto to film Secrets of Eden— click through to see who else was on set!