Kate wears Diana’s earrings for starry premiere with William and Tom Cruise

The Princess of Wales wore a set of earrings which belonged to Princess Diana as she and Prince William attended the world premiere of Tom Cruise’s new film.

William, who is the president of Bafta, and Kate attended the premiere of Digger in Leicester Square, central London, on Tuesday. Kate wore a purple floor-sweeping Jenny Packham dress accessorised with Diana, Princess of Wales’s earrings and the Queen Mother’s amethyst sautoir necklace.

William wore a black velvet tuxedo that attracted a compliment from Mr Cruise, who greeted the prince with the words “great jacket”.

The film premiere came as the Prince of Wales’s late mother has dominated headlines due to the publication of her brother Earl Spencer’s book.

The 64-year-old Mr Cruise stars opposite Riz Ahmed, Sandra Huller and Jesse Plemons in the film about an oil tycoon whose company sets off an ecological disaster, forcing the Mission: Impossible star’s billionaire character to embark on a mission to save humanity from his own mess.

The Hollywood star wore a traditional black tuxedo with cummerbund and bow tie, but his patent leather cowboy boots were a surprising nod to his Digger character.

Co-star Mr Ahmed, who opted for a single-breasted black blazer with flap pockets and wide-leg suit trousers, was accompanied by his mother in a traditional sari in red ombre tones.

British actor Mr Ahmed was not the only star who attended the event with his family: Sir David Beckham brought along two of his sons, Cruz and Romeo, with the family trio all in tuxedos.

They posed for photographs alongside William and Kate, who were also seen talking to the cast of the satirical black comedy, including House Of The Dragon’s Emma D’Arcy, Everything Now actress Sophie Wilde and Call Me By Your Name’s Michael Stuhlbarg.

The film’s director Alejandro G Inarritu, who won best director Oscars for The Revenant and Birdman, was also on the black carpet.

Digger actress Huller wore a gold deep V-neck gown with cape-like sleeves, while her co-star Wilde walked the carpet in a dark purple off-the-shoulder crinkled dress with sculptural draped layers and a neckline bow.

Known for his exuberance at premieres, Cruise spent time taking photographs with fans and also signed the white shirt of one man who was in the crowd.

Also in attendance, Salma Hayek wore a silk-caped black maxi dress while actress Jodie Turner-Smith wore a peach-toned backless pleated dress with ruffled sleeves.

Ted Lasso actress Hannah Waddingham also posed for photographs wearing a sparkly black strapless gown alongside her partner Nick Beresford-Cleary.

Digger will be released in cinemas in the UK on 2 October.