Princess Catherine stepped onto a rare movie-premiere red carpet in a sweeping purple gown, with one unexpected detail soon inspiring a familiar movie comparison.Prince William joined Catherine and Tom Cruise at the “Digger” premiere in London, where her dramatic look and a courteous moment on the steps fueled conversation online.Catherine brought royal glamour to London’s Leicester Square Gardens on September 22, 2026, for the world premiere of the film.She arrived with William in a floor-length purple gown featuring sheer sleeves, a low neckline, and fabric that draped across an open back. Her brunette hair fell in loose curls, partly swept away from her face, while drop earrings and a dark pendant completed the look.

William and Tom both chose traditional black tie for the occasion, wearing black tuxedos, white shirts, and black bow ties.The premiere doubled as a Royal Film Performance benefiting the U.K.’s Film & TV Charity. Catherine and William began their evening by speaking with Tom and director Alejandro González Iñárritu before continuing along the carpet to meet the cast.Tom accompanied Catherine during those introductions, while Alejandro walked with William. Riz Ahmed, John Goodman, Sandra Hüller, Michael Stuhlbarg, and Jesse Plemons were among the cast members who attended the premiere.Salma Hayek, Hannah Waddingham, J.J. Abrams, Sophie Wilde, Emma D’Arcy, and cinematographer Emmanuel Lubezki were also among the guests.The evening put William and Catherine on a movie-premiere carpet together for the first time in more than four years. People reported that their previous joint appearance at such an event came at the U.K. premiere of “Top Gun: Maverick” in May 2022, another night that brought them together with Tom.William’s connection to the British film industry had also been on display earlier that day.