Kate Middleton Wears Temperley Dress to Premiere on Eve of 30th Birthday

Kate Middleton attended a film premiere wearing an Alice Temperley dress.

On the eve of her 30th birthday, the Duchess of Cambridge attended the film premiere for "War Horse" in London's West End with husband Prince William. He held an umbrella over Middleton as she walked the red carpet and mingled with movie director Steven Spielberg. According to Grazia, Duchess Catherine was "met by a deafening cheer from the crowds," some offering up birthday wishes.

Always a head-turner, the future princess wore an on-trend black lace gown with a nude lined underlay and velvet belt by on of her favorite British designers, Alice Temperley. Clearly the style icon is a fan of long-sleeve, V-neck lace gowns, as it was reminiscent of her Alexander McQeen wedding dress. Middleton accessorized with a matching velvet bow clutch by Mascaró, her diamond and sapphire engagement ring, and a diamond bracelet. Prince William looked ever the gentleman in a tuxedo and bow tie.

Duchess Catherine has been spotted Temperley several times before, including a pleated one dress she wore to Wimbledon earlier this year, an embroidered Alice by Alice Temperley blouse she paired with bootcut jeans and a cowboy hat on her trip to Calgary, and a black and white dress she wore to her first event following her enegagement announcement. Her sister, Pippa Middleton wore a Temperley gown to the Royal Wedding reception and sat front row at the Temperley fashion show at London Fashion Week last September.

Today is Duchess Catherine's actual birthday, and according to Yahoo!, palace officials said tonight's celebration will be a "low-key and private" affair with friends and family. We'd heard rumors of an '80s-themed karaoke birthday party, and that celebrity designer Victoria Beckham even sent over gowns for Middleton to wear for her birthday, but the future princess may be looking for a more simple, elegant celebration as she turns 30.

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