Nelson Mandela's daughter Zindzi revealed her father is "fine" but "frail" as a film about his life had its royal premiere in London.
She joined the Duke and Duchess of Cambridge and the film's stars Idris Elba, Naomie Harris and Tony Kgoroge on the red carpet at Leicester Square for the UK premiere of Mandela: Long Walk To Freedom.
"My father is fine. He's 95 years old and he is pretty frail. We are hoping to see more of him," she said of the former South African leader, who is in ill health.
She revealed Mr Mandela has seen some clips of the film, which is adapted from his autobiography of the same name and stars Elba as the former South African president.
"I love it. I think it's authentic," she said.
William and Kate reached the red carpet a little over an hour after the stars and guests arrived.
The Duchess, wearing a figure-hugging cream dress by French designer Roland Mouret, was the main focus for the cameras.
Once inside, the royal couple met Cinema and Television Benelovent Fund trustees, beneficiaries, Mr Mandela's daughter and members of the film's cast and crew.
The Royal Film Performance is held annually and is the principal fundraising event for the CTBF, the trade charity for the UK film and television industries.
The fund provides care and financial support to industry employees and their families who suffer hardship due to bereavement, illness, redundancy or other misfortunes.
CTBF president Barry Jenkins said the fund was thrilled to be able to host the royal premiere of the joint South African-British production, which was a sell-out.
" We are most grateful to the Royal Family for their continued support since the very first Royal Film Performance event back in 1946," he said.
"The funds raised from this event make a huge difference to the lives of industry colleagues and their families in times of great need."
The film will be released in cinemas across the UK and Ireland on January 3.