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Dahl: Charlie and the Chocolate Factory chapters discovered

29 August 2014 Last updated at 21:26 BST

In the 50 years since Roald Dahl wrote the children's classic "Charlie and the Chocolate Factory" the book's characters have become household names but it turns out they were only part of the original story.

The discovery of new unpublished chapters reveals Dahl had intended to include more children lucky enough to win the golden ticket and meet Willy Wonka.

Will Gompertz has the full story.