Actor Colin Firth has pulled out of voicing the character of Paddington Bear in a Hollywood role because his voice "did not fit", he said.
The Oscar-winning star was due to voice the famous Peruvian bear in the film Paddington, due out in five months and featuring Nicole Kidman and Peter Capaldi.
But, in a statement to Empire, he said: "It's been bittersweet to see this delightful creature take shape and come to the sad realisation that he simply doesn't have my voice."
"After a period of denial, we've chosen conscious uncoupling," added the 53-year-old, referencing a term coined by actress Gwyneth Paltrow and husband Chris Martin when they recently announced their separation.
The film's director Paul King said the split was "amicable" and he had not yet selected a replacement for the King's Speech star.
Colin Firth will provide the voice for Paddington Bear in a new film based on the adventures of the duffle coat-clad character.
The bear, famous for his love of marmalade sandwiches and named after the London station where he was found, was created by Michael Bond.
He first appeared in 1958 in his first book, A Bear Called Paddington, which told how he was packed off from darkest Peru and made his way to Britain where he was adopted by the Brown family.
The King's Speech star joins a cast that includes Downton Abbey's Hugh Bonneville, who plays Mr Brown, Nicole Kidman, Julie Walters and Jim Broadbent.
Colin Firth and Cameron Diaz's new movie is set in one of London's most exclusive hotels - The Savoy.
They spoke to ITV London's Entertainment Correspondent Lucrezia Millarini about filming with members of the public and a very naked Alan Rickman.
Hollywood stars Colin Firth and Nicole Kidman were caught in pouring rain as they filmed their latest movie, The Railway Man in Lindisfarne, in Northumberland.
The film is about a man from Berwick who survived a prisoner-of war-camp.
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Hollywood stars Nicole Kidman and Colin Firth were wrapped up against the weather as they started work on their latest film.
The pair were spotted on set in Bo'ness, Falkirk, where they are filming scenes for The Railway Man.
The film, based on the book of the same name, tells the true story of Scottish soldier Eric Lomax who was held captive and made to work on the Burma railway by the Japanese during the Second World War.
Lomax, played by Firth, tracks down one of his captors after the war and forgives him.
Kidman, who plays Lomax's wife, said she was looking forward to staying in Edinburgh during the filming. She said: "One of the great things about being an actor is that you get to live in a city for a certain amount of time.
"You really get to know it, and you don't feel like you're just visiting, so that's what I look forward to doing. I hope there's some good restaurants, I'll be out and about."