Charlie and the Chocolate Factory (film) shades of chocolate were tested before Burton settled on the proper hue. The original music score was written by Danny Elfman, a frequent collaborator with director Tim Burton. Elfman's score is based around three primary themes: a gentle family theme for the Buckets, generally set in upper woodwinds; a mystical, string-driven waltz for Willy Wonka; and a hyper-upbeat factory theme for full orchestra, Elfman's homemade synthesizer samples and the diminutive chanting voices of the Oompa-Loompas. Elfman also wrote and performed the vocals for four songs, with pitch changes and modulations to represent different singers. The lyrics to the Oompa-Loompa songs
Charlie and the Chocolate Factory (film) to help Wonka confront and reconcile with his estranged father; Wonka finally realizes the value of family, while his father learns to accept his son for who he is, and not what he does. In the end, Wonka finally allows Charlie's family to move into the factory. Author Roald Dahl disapproved of the 1971 film adaptation and declined the film rights to produce the sequel, "Charlie and the Great Glass Elevator". Warner Bros. and Brillstein-Grey Entertainment entered discussions with the Dahl estate in 1991, hoping to purchase the rights to produce another film version of "Charlie and the Chocolate Factory".