Actress Helen Mirren, who previously won the Best Actress Oscar portraying Queen Elizabeth II in “The Queen,” was in attendance, and when Middleton met Mirren, she reportedly quipped, "I hear my husband called you granny last night."
Kate was referring to hubby Prince William’s comment at the BAFTAs on Sunday, where he said he should call Mirren “granny” as he awarded the 68-year-old actress with an Academy Fellowship award.
Middleton showed off her slim figure at the event in a red Alexander McQueen dress, the same one she wore to the Thames Diamond Jubilee Pageant in June 2012.
Other stars in attendance included Uma Thurman, Hugh Laurie, Helena Bonham Carter, Joan Collins, Joely Richardson, Gemma Arterton, Roger Moore, Steve McQueen, Harvey Weinstein, Ralph Fiennes, and Angela Lansbury.
The Duchess of Cambridge, Kate Middleton and Queen Elizabeth II welcomed Britain’s A-list movie stars to Buckingham Palace on Monday, hosting a reception honoring the country’s theater and film talent.