Duchess Kate stuns in white Alexander McQueen dress at the BAFTAs

Prince William and Kate stepped out for the British film world's big night.

Duchess Kate stunned the British Academy Film Awards (BAFTA) red carpet Sunday night in a dreamy, white asymmetrical dress.

Kate, 37, stepped out for the British Awards show accompanied by her husband, Prince William, 36, who is the BAFTA president and one of the presenters of the night.

Kate looked like a real-life princess in her white, one-shouldered, Alexander McQueen dress which she accompanied with simple accessories including a white clutch and diamond bracelet. Kate also wore an Alexander McQueen gown when she tied the knot with William in 2011.

Her standout accessory were her dangly pearl earrings, which reportedly belonged to the late Princess Diana.

The duchess took time at the awards show to honor some of the best British film stars in the industry, including actress Rachel Weisz, who took home the BAFTA award for Best Supporting Actress for her role in "The Favourite."

Kate also spoke to Spike Lee, who took home an award for Best Adapted Screenplay for his film, "BlacKkKlansman."

William exchanged a few words with the cast of the breakout Netflix hit "Roma," as well as actress Leticia White, who won the coveted Rising Star Award.