Sets across the world were hopping with stars this week. Carey Mulligan returned to Australia to shoot The Great Gatsby and Zac Efron showed some muscle for the cameras in LA. Jason Sudeikis and Will Ferrell took their work to New Orleans while Chace Crawford got into character in NYC for Gossip Girl — click through to see who else was on set! Read more

Blake Lively chatted on the phone as she left her trailer on the NYC set of Gossip Girl today. She bundled up and headed back to work for the second day in a row to shoot upcoming scenes as fans wait to find out Gossip Girl's true identity. The show's 100th episode aired on Monday and was filled with plenty of OMG moments including Blair's royal wedding and Serena's love confession to Dan! Read more

The women of Cougar Town were decked out to film a big scene for their season finale in LA yesterday. It's rumored that the next 15-episode run of the show will begin with an engagement and end with a wedding and Busy Philipps, Courteney Cox, and Christa Miller were all in gowns for the afternoon. Courteney's white dress in particular may imply she'll be walking down the aisle with her onscreen Read more

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 Read more

Stars were exercising their acting chops and flexing their comedic muscles on set this week. Ashley Greene and Michael Mosley kissed in NYC for Pan Am, and across town Tina Fey did her best to look disgruntled while filming 30 Rock. Joshua Jackson smiled between scenes of Fringe in Canada, while Chris Noth and Peter Sarsgaard shared the spotlight for Lovelace in Manhattan Beach — click Read more

Lea Michele and Cory Monteith were back on the LA set of Glee to film the Valentine's Day episode with a special guest yesterday. Jeff Goldblum will star on Glee along with Brian Stokes Mitchell as the dads of Lea's character, Rachel Berry. Lea tweeted a family photo of her onscreen father figures yesterday between scenes. She arrived on the set in a black dress but quickly changed into a flirty Read more

Stars kicked off the New Year by getting back to work on fun projects this week. Blake Lively couldn't stop smiling on the NYC Gossip Girl set, and Amy Adams was feeling just as happy to film Man of Steel in Vancouver. Over in Las Vegas, Steve Carell, Steve Buscemi, and Olivia Wilde worked on hilarious scenes for Burt Wonderstone — click through to see who else was on set! Read more

Blake Lively was dressed warmly for an afternoon of shooting Gossip Girl yesterday in NYC. She's focusing on the current season of her CW hit, but will soon switch gears to record her next big-screen role. Blake landed a role in Steven Soderbergh's The Side Effects opposite Jude Law. The picture will also feature one of Soderbergh's favorite actors, Channing Tatum. Channing and Steven have Read more

Stars left their holiday vacations to get back to work on fun and exciting projects this week. Tina Fey did a funny skit on the Late Show to promote 30 Rock in NYC. In LA, Colin Farrell rolled out of bed and onto the set of Seven Psychopaths, and across town, Dax Shepard and Peter Krause goofed around between scenes of Parenthood — click through to see who else was on set! Read more

Scarlett Johansson was back in Glasgow to work on her upcoming sci-fi film Under the Skin on Friday. The star has been filming overseas recently in the UK, where she apparently met her new love interest Dan White from the band Tribes. Scarlett Johansson and Dan White are reportedly dating, and at last week's We Bought a Zoo premiere in NYC, Matt Damon insisted that she would make any guy "very Read more