On the eve of her birthday, the Duchess of Cambridge wowed her fans with a sophisticated Temperley dress that had intricate lace details.

Being the classy stunner that she is, Kate Middleton did not disappoint her fashion followers when she was seen in a dark, laced number from Temperley during the premiere of Steven Spielberg's film, 'War Horse' in London on Jan. 8.

The floor-length dress looked immaculate when paired with the Duchess' physique and features, with her eyes and flawless curls framing her beautiful face. The Royal couple attended the premiere to support Prince William and Prince Harry's charity, 'Forces In Mind Trust.'

The Duchess looked graceful with the soft details of the dress: the three fourths sleeve and the darling v-neckline that showed off how well Kate has been keeping her diet. The pair looked like true fashion royalty with the way they presented themselves on the red carpet. Even the umbrella held by Prince William matched the hues of the Duchess' lace dress.

It's only the start of the year, and it is pretty clear that Kate Middleton continues to be a force to reckon with when it comes to fashion. Wherever or whatever kind of affair she may attend, it is certain that Middleton will look good in the choices she wears.

View the slideshow to see images of the Duchess wearing this lace Temperley dress.

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Kate Middleton London