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Charlie and the Chocolate Factory: Backstage tour

21 June 2013 Last updated at 01:27 BST

Roald Dahl's children's story of Charlie and the Chocolate Factory is set to be a stage musical in London's West End.

Director Sam Mendes will bring the story to life, with Douglas Hodge taking the lead role of Willy Wonka.

Production manager Patrick Molony gave BBC News a tour of the secrets beneath the stage of the new musical.