Charlie and the Chocolate Factory (musical) more, and she places him in her purse and leaves the factory quite satisfied. Charlie is the only child left. When Grandpa Joe asks about their lifetime supply of confectionery sweets, Mr. Wonka casually dismisses them saying that the Everlasting Gobstopper Charlie had got was the lifetime supply of candy. Grandpa Joe is angry, but Charlie defuses the situation saying that an Everlasting Gobstopper is still an amazing present. When he leaves with Grandpa Joe, Charlie opens a book which contains all of Wonka’s ideas, adding a few of his own to the blank pages in the back. Wonka silently
Willy Wonka & the Chocolate Factory to buy the rights to the book and finance the picture for the purpose of promoting a new Quaker Oats "Wonka Bar". David L. Wolper and Roald Dahl agreed that the film would be a children's musical, and that Dahl himself would write the screenplay. However, Wolper changed the title to "Willy Wonka and the Chocolate Factory". Screenwriter David Seltzer conceived a gimmick exclusively for the film that had Wonka quoting numerous literary sources, such as Arthur O'Shaughnessy's "Ode", Oscar Wilde's "The Importance of Being Earnest", Samuel Taylor Coleridge's "The Rime of the Ancient Mariner" and William Shakespeare's "The Merchant