Cate Blanchett, Emma Watson and More Stars Stun at Prince WIlliam's Windsor Castle Charity Dinner

Cate Blanchett, Emma Watson, Benedict Cumberbatch and more of Hollywood's biggest stars stepped out tonight to attend the Duke of Cambridge's Royal Marsden Hospital charity dinner at Windsor Castle in Windsor, England.
Blanchett stunned in a white, one-shoulder gown with jeweled earrings and her hair up. As for Watson, the 24-year-old looked like the epitome of class and elegance in a crisp white shirt tucked into a floor-length gray skirt. Watson completed her look with a dark red lip.

Meanwhile, Cumberbatch looked dapper in a formal black suit and tie. Inside the bash, Cumberbatch and Will chatted for a long time and the Sherlock star admitted to feeling "guilty" about hogging the duke's attention. "He is just a stand-up guy," Cumberbatch said.
Cara Delevingne proved her model chops during the charity dinner in a gorgeous black halter dress that showed off her thin frame. Other stars who mixed and mingled with the prince during the event included Kate Moss, Margot Robbie, Ralph Lauren.