Lights! Camera! Fashion!

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JENNIFER GARNER

The gets back to work in patriotic red, white and blue as she films her new role in Valentine’s Day.

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KATIE HOLMES

The bundles up against the Australian winter in a full-skirted coat and patterned scarf as she films Don’t Be Afraid of the Dark near Melbourne.

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RACHEL MCADAMS

Those don’t look like running shoes! The sprints through the Manhattan set of Morning Glory in a sweet beige party dress and bubblegum-pink pumps.

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JENNIFER LOPEZ

A little rain can’t dampen that smile! The gets wet while shooting The Back-Up Plan in Manhattan.

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BLAKE LIVELY

The Gossip Girl heats up the streets of Manhattan in a second-skin Hervé Léger dress and gold stilettos.

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SHENAE GRIMES

The 90210 star stays shady under her wide-brimmed hat as she films the show’s second season on a yacht in Marina Del Ray.

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JULIA ROBERTS

flashes her trademark grin as she heads to her trailer in a chic black outfit while filming the movie adaptation of the best-selling memoir Eat, Pray, Love.

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LEIGHTON MEESTER AND ED WESTWICK

The Gossip Girl lovebirds film on the Upper West Side of Manhattan in perfectly color-coordinated outfits – check out how pocket square and bow tie match Nancy Gonzalez purse!

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EVA LONGORIA PARKER

The Desperate Housewives is all ruffled up in her bright pink suit as she heads to the film’s set.

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TERI HATCHER AND DANA DELANY

Is it Bride Wars, part two? The Desperate Housewives costars are wedding-ready in their flowing white gowns on the show’s L.A. set.

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JENNIFER ANISTON

keeps a tight grip on her Ferragamo bag as she films The Bounty with Gerard Butler (not pictured) in Atlantic City.

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SARAH JESSICA PARKER

The slips easily back into Carrie Bradshaw’s towering Brian Atwood heels as she films Sex and the City 2 in N.Y.C.

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KIM, CYNTHIA, SARAH JESSICA AND KRISTIN

The ladies of Sex and the City are back! The fab foursome get into their character’s signature styles as they snap a pose outside Bergdorf Goodman.

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CAMERON DIAZ

Pedro Andrade/Bret Thompsett/Pacific Coast News

She doesn’t seem to be feeling blue! The is sleek in a turquoise sheath and white tote on the set of The Green Hornet.

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BLAKE LIVELY

The Gossip Girl makes for a perfect screen siren as she dazzles in a shimmering minidress, fishnet stockings and Marcel waves.

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JESSICA ALBA

It may be Valentine’s Day, but this is all business in her black suit as she films in Los Angeles.

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JULIA ROBERTS

The tries to go incognito in a floppy straw hat and denim shirtdress, but her face is unmistakable as she films Eat, Pray, Love in Rome.

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HILARY DUFF

Blake’s not the only Gossip Girl star getting into a ’20s mood! is Charleston-ready in her flapper-inspired black dress and long pearls.

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MISCHA BARTON

Strike a pose! works it for the camera in bold green as she shoots a scene for The Beautiful Life, a new CW series in which she plays a model.

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KRISTEN STEWART

The Twilight leaves her Joan Jett mullet behind for Bella Swann’s flowing locks as she begins filming Eclipse in Vancouver.

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MICHAEL URIE AND AMERICA FERRERA

Talk about a top dog! The comedic pair from Ugly Betty skip fashion for fast food while filming in New York City.

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JESSICA BIEL

Is someone not having a good Valentine’s Day? The gets loaded down with props on the set of the star-studded film.

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JAMIE-LYNN SIGLER

The actress is barely recognizable in her asymmetrical bobbed wig as she gets the giggles while filming Ugly Betty.

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BECKI NEWTON

Call it recession chic! The Ugly Betty fashionista is stylish in an affordable sweater, necklace and studded skirt from Topshop as she films in N.Y.C.

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HAYDEN PANETTIERE

It’s the cheerleader! The small screen slips into a familiar costume to shoot scenes for Heroes.

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CAMERON DIAZ

adds a tough edge to her sweet yellow dress with buckled Aldo boots and a Coach cross-body bag while filming her new spy thriller Wichita in Boston with (not pictured).

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JULIA ROBERTS

The gets in touch with other cultures, wrapping a long colorful scarf over wide-leg denim pants and Toms loafers as she films scenes for Eat, Pray, Love in India.

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SARAH JESSICA PARKER

Back in Carrie Bradshaw’s designer heels, the films a fashionable scene in her glimmering green dress, color block Adriana Castro clutch and rickrack Pierre Hardy booties on the set of Sex and the City 2.

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TAYLOR LAUTNER

Forget ‘s chiseled abs! shows off his guns – and new motorcycle – on the Vancouver set of Twilight’s third installment, Eclipse.

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HEATHER LOCKLEAR

Look who’s back! Melrose Place’s original vixen makes a sexy appearance on the show’s set in a body-hugging red-hot minidress.

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KIM CATTRALL

Is Sex and the City’s last single girl tying the knot? In true Samantha fashion, Cattrall opts for a plunging white lace number while heading to the set of the sequel.

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TAYLOR MOMSEN

No headbands here! Gossip Girl’s new makes leather jackets, textured tights and tough booties the new staple on the Upper East Side.

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ASHLEE SIMPSON-WENTZ

Showing off her wild side, is ready to cause trouble in her leopard-print jumper and hot pink-soled platform booties on the Melrose Place set in Los Angeles.

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LEONARDO DICAPRIO

There’s nothing top-secret about that smile! After shooting in Paris, the brings his dreamy grin back to L.A. where he gets down to business in a gray suit and plaid shirt while filming Inception.

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KRISTIN DAVIS

The actress is back to prim and proper fashions in a sweet ruffled dress and coordinating Nancy Gonzalez bag as Charlotte York-Goldenblatt on the SoHo set of Sex and the City 2.

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MATT DAMON

A trimmed-down , arrives on the New York City set of The Adjustment Bureau in a crisp white button-down and black trousers.

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JESSICA, PENN & HILARY

Jessica Szohr and put their own spin on casual – skinny denim topped with a leather jacket for Szohr, and wide-leg jeans paired with a tuxedo blazer for Duff – as they get acquainted on the downtown set of Gossip Girl. And don’t forget flannel-shirt-clad , who trails stylishly behind the duo.