Charlie and the Chocolate Factory (film) factory, who then leads them into the facility. Individual character flaws cause four children to give into temptation and the Oompa-Loompas (Deep Roy) sing a song of morality after each elimination. During the tour, flashbacks reveal Wonka's troubled past; his father, a prominent dentist named Wilbur (Christopher Lee), strictly forbade Wonka from consuming candy due to the potential risk to his teeth. After sneaking over a piece of candy, Wonka was instantly hooked, and ran away to follow his dreams. When he returned, both his father and their house were gone. After the tour, the four children leave the factory
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