'Breaking Dawn' and More 'You're On the Set!' Photos!

Robert Pattinson and Kristen Stewart show some skin while filming The Twilight Saga: Breaking Dawn at a waterfall in Paraty, Brazil.

Pattinson gives Stewart a ride on the set of The Twilight Saga: Breaking Dawn in Brazil.

Pattinson bares his abs on the set of The Twilight Saga: Breaking Dawn.

Jimmy Fallon, Lil Jon, La Toya Jackson and John Rich hit the streets while filming The Celebrity Apprentice in New York City.

Amy Adams dressed to impress on the set of The Muppets movie in Hollywood.

Penn Badgley and Leighton Meester on a New York sidewalk while filming Gossip Girl.

Jim Carrey comes bearing gifts in this scene on the set of his new movie Mr. Popper's Penguins on Park Avenue in New York.

Will Smith's ready for action on the set of Men in Black 3 in Queens, N.Y.

Ben Stiller and Eddie Murphy share a laugh on the set of Tower Heist in Queens.

Casey Affleck's got a handle on things on the set of Tower Heist in New York City.

Christopher Meloni looks ready to pounce while filming a scene for Law & Order: Special Victims Unit in New York.

Chris O'Donnell and LL Cool J in the heat of the moment on the set of NCIS: Los Angeles at the Venice boardwalk in L.A.