Channing Tatum, Mila Kunis, Cameron Diaz on Set

It was a busy week in front of the camera for these celebrities. Cameron Diaz got to work on Gambit in London while LeAnn Rimes headed to Canada to start filming Reel Love. Channing Tatum was on the set of 21 Jump Street in New Orleans and Mila Kunis stepped out in character on the streets of Boston. They aren't the only stars that hit the set this week — click through to see them all!