The couple stepped out for one of just a few joint engagements they are undertaking at the moment. It has been suggested William and Kate wish to arrange their appearances this way to enable them to visit more organisations and to ensure one of them is with little George as often as possible.
Royal correspondent Victoria Murphy shared a photo of the red carpet arriving earlier today.
|Victoria Murphy Twitter Feed|
And CNN'S David Wilkinson shared a photo of the finished look before the stars arrived.
|David Wilkinson CNN Twitter Feed|
Before the performance, Their Royal Highnesses met members of the film's cast and crew including the star of the movie, Idris Elba. UK readers will be familiar with Mr. Elba from his title role in Luther while those across the pond may have seen him in The Wire. The talented actor's performance has critics suggesting he may be a strong contender for next year's Academy Award for Best Actor. The couple also met actress Naomie Harris and the movie's director Justin Chadwick.
Idris Elba and Naomie Harris both looked every inch the leading man and lady on the red carpet. Ms. Harris wore a dress by one of Kate's favourite brands, Alexander McQueen.
Speaking about meeting William and Kate, Idris Elba said:
'Tonight is extra special because this is my country and when the royals come out to watch a film it's a big deal.'
William and Kate spoke with Nelson Mandela's daughter Zindzi Mandela who, along with her father and members of their family, helped film makers create an accurate portrait of the iconic leader.
The movie, which is released in the UK on 3 January, is said to be one of the must see productions of the year. The epic motion picture spans Mandela's extraordinary life, from his childhood through to his inauguration as president of South Africa. I'm very much looking forward to viewing it; will you see it?
It has smashed box office records in South Africa and received a special screening in The White House, attended by President Barack Obama.
Proceeds from the night go to the Cinema and Television Benevolent Fund, the leading UK charity for Cinema, Film and TV professionals supporting those in need, and running charity fundraiser events, including the annual Royal Film Performance. This year's film will also raise money for the Nelson Mandela Children's Fund which aims to create a better future for children in South Africa.
|Cinema and Television Benevolent Fund|
The first Royal Film Performance was in 1946 when King George VI attended the UK première of A Matter of Life and Death and the tradition has continued ever since. From The Queen's appearance at the première of Casino Royale in 2006 to Prince William's solo appearance at The Hobbit last December. As for Kate, many will recall the stunning Temperley London Amoret gown she wore at the War Horse Première in 2011.
Kate brought back the creamy white Roland Mouret 'Lombard' gown she previously wore for an elegant dinner at Claridge's in May 2012. For it's first public outing, Kate wore her hair down with minimal jewellery. Did you prefer tonight's look?
The 'Lombard' is from the designer's 2009 line, it was inspired by actress Carole Lombard. Kate's dress is a bespoke version of the green dress shown below. As you can see it encompasses many of the same element including the high slit, high neckline and defined shoulders.
Mr. Mouret spoke about designing the dress with the Duchess last year:
'She's a fantastic person to work with. She's a woman of her time. She's very aware of her position and she's a really nice person. She's human, it's really nice to work with someone in her position. It's historic...yes.'
A look at the back of the dress.
The Duchess wore her hair in a ponytail with a ribbon. It was lovely to see her wear her hair up.
Kate accessorised with a striking statement necklace.
On first look, many of us thought the Duchess was sporting a diamond piece (perhaps Cartier) until WKW FB friend Kristen identified it as a Zara piece. The Sparkly Bead Crystal Necklace retails for merely £20, however it is sold out on the US site. No doubt it will prove a popular stocking filler this year.
Ashley Marie identified Kate's clutch as the Mulberry Bayswater in black suede.
Kate's black suede shoes are by Prada (with thanks to WWKD). The round toe pumps are made in Italy and feature leather insole and lining, leather outsole, low-cut vamp and 4 1/4 inch covered high heel. They're available for €507 at Neiman Marcus.
You can watch a video from the event at Youtube.
The night of the première coincides with the terribly sad news Nelson Mandela has passed away, aged 95. South African president Jacob Zuma said "He passed on peacefully surrounded by his family tonight. Our nation has lost it's greatest son. Our people have lost a father. Although we knew this day would come, nothing can diminish our sense of profound and enduring loss". We know two of Nelson Madela's daughters are in London tonight. Our thoughts are with his family and the South African people. R.I.P.
|ABC News Twitter Feed|
William and Kate were informed of the sad news while they were watching the movie. The audience held a two-minute silence at the end of the movie. As they left Prince William made a brief statement where he said "I just wanted to say it's incredibly sad and tragic news. We were just reminded what an extraordinary and inspiring man Nelson Mandela was. My thoughts and prayers are with him and his family. It's very sad". Both the Duke and Duchess looked visibly moved by the tragic news. You can watch a video of William's statement at ITV News.
Photographers noted they both sombre as they left.
Tomorrow Kate will visit Shooting Star Hospice!