Postman Pat - whose adventures have been shown on TV for 30 years - is making a special delivery to the big screen.
Postman Pat: The Movie - You Know You're The One has Stephen Mangan, who played Dan Moody in I'm Alan Partridge and Sean Lincoln in Episodes, voicing the popular postie.
Other members of the all-star 'cast' will include Moulin Rouge's Jim Broadbent, Harry Potter star Rupert Grint and former Doctor Who David Tennant.
The film, which is to be made in 3D, sees Postman Pat enter a national TV talent show, which threatens to tear him away from Greendale and the friends he loves.
The show forces Pat to confront the temptations of money, status - and wearing a shiny new suit.
Mangan said: "I'm absolutely thrilled to be playing the world's best-known postman in his big screen debut. He's an iconic British hero and it's a great script.
"However, when I excitedly told my three-year-old son that I was going to be Postman Pat, he said 'no you're not, dad, don't be silly'."
Grint, whose role was not revealed but could be Pat's son Julian, added: "I used to watch Postman Pat when I was a small boy.
"Postman Pat is one of those British symbols, I suppose. You are totally familiar with him and his cat Jess, even if you have never watched the series."
The screenplay is being co-written by Spice World writer Kim Fuller and and Annika Bluhm, the long-time producer of the Postman Pat TV series.
Production beings later this month and the movie is expected to be released in Spring 2013.
