Rob Brydon, Sally Hawkins and Dame Diana Rigg are all lending their voices to a new animated version of children’s book, The Snail and The Whale.

The beautiful tale of an unlikely friendship, a tour of the world and a heroic rescue will feature Brydon as Whale, Hawkins as Snail, and Dame Diana Rigg as the Narrator.

The animation will be broadcast on BBC One at Christmas

Rob Brydon said: “It’s always so wonderful to work with Magic Light on these animated specials for Christmas. The Snail and the Whale is a longstanding favourite in our house. It’s an epic journey across the globe, where the tiniest creature and the mightiest mammal experiences the vastness of our planet together.”