Celebrities on Set For the Week of January 23, 2012

Stars were all about wacky costumes and fun-filled scenes on set this week. Woody Harrelson flashed his famous grin shooting Now You See Me on location in New Orleans. Peter Sarsgaard raised the roof filming Lovelace in LA, while across town, James Gandolfini smiled for The Incredible Burt Wonderstone. Tina Fey brought her A-game to the streets of NYC, where 30 Rock taped. Click through to see who else was on set!