Claire Danes paired her dangerously low in a black Azzaro by Vanessa Seward backless dress with Neil Lane diamonds at the Los Angeles premiere of Stardust on Sunday.

The Matthew Vaughn-directed fantasy film is based on the novella by Neil Gaiman. In the film, Danes play Yvaine, a star that transforms into a striking girl.

Pictured inside: Co-star Charlie Cox.

Not too far behind on the red carpet: Claire’s British beau Hugh Dancy.

Stardust is in theaters nationwide on Friday, August 10.

10+ pictures inside of Claire Danes‘ backless number… More Here! »

Claire Danes and British beau Hugh Dancy attend the opening of the exhibition ‘Valentino a Roma: 45 Years of Style’ at the Ara Pacis in Rome on Friday. With around 300 garments and rare archive material, the exhibition is a retrospective that will celebrate Valentino’s 45 years of creativity.

Claire, 28, and Hugh, 31, met on the set of Evening, which is out in theaters now.

More pictures inside of Danes and Dancy at the Valentino Show… More Here! »

Claire Danes returns from her Live with Regis and Kelly! taping on Monday morning with a gift basket full of lotions and soaps. That’s what Regis! guests get nowadays, huh?

The 28-year-old actress then walked hand-in-hand with her British beau Hugh Dancy while walked their schnoodle puppy Weegee.

More pictures inside of Danes and Dancy walking Mister Weegee… More Here! »

Claire Danes and her hottie British beau Hugh Dancy get hot and heavy poolside at the Four Seasons Resort in Maui earlier this month.

The couple also went for romantic strolls along the beach and took on scuba diving during their stay in Hawaii.

Claire, 28, and Hugh, 31, met on the set of Evening, which comes out… TOMORROW, June 29.

More pictures inside of Danes and Dancy getting their kissy kissy on… More Here! »

Are these the official “Claire Danes & Hugh Dancy striped-shirt outfits for flying”?

Claire, 28, and British beau Hugh, 31, were spotted in matchy white-and-navy striped shirts while arriving at JFK airport en route to Los Angeles on Tuesday, June 12.

Two weeks later, the couple were spotted in the same clothes making their way through LAX airport en route back to NYC (Tuesday, the 26th).

Cheers for recycling clothes!

25+ pictures inside of Claire and Hugh getting their recycling clothes on (first 3 rows are from the 26th, last two rows from the 12th) … More Here! »

Claire Danes and British beau Hugh Dancy go under the sea for a spot of scuba diving in Hawaii on Thursday. How can such a fun water sport make you look so silly?

Later in the day, the actor couple was spotted squeezing the sand between their toes during a romantic stroll along the beach.

25+ pictures inside of Claire and Hugh at the 2007 Tony Awards on Sunday and the premiere of Evening on Monday. Both events were held in NYC with Danes wearing Jean Paul Gaultier both times. Claire, 28, and Hugh, 31, met on the set of Evening… More Here! »

Claire Danes (in Narcisco Rodriguez Fall 2007) honors designer Narciso Rodriguez at the Pratt Fashion Icon Awards at the Gramercy Park Hotel on Wednesday in New York City.

To the right, Russian supermodel Natasha Poly.

Who wears it best — CLAIRE DANES or THE RUNWAY MODEL?

Claire Danes and British beau Hugh Dancy step out together for the Costume Institute Gala on Monday night. Danes wore a pewter-hued column dress from Prada.

To the right, the cozy couple took Claire’s pet pooch WeeGee to a playground in Washington Sqaure Park earlier in the day.

Do you like Hugh Dancy & Claire Danes — DRESSED UP or DRESSED DOWN?