Willy Wonka & the Chocolate Factory too much emphasis on Willy Wonka and not enough on Charlie", as well as the casting of Gene Wilder instead of Spike Milligan. Dahl was also "infuriated" by the deviations in the plot Seltzer devised in his draft of the screenplay, including the conversion of Slugworth, a minor character in the book, into a spy (so that the film could have a villain) and the "fizzy lifting drinks" scene along with music other than the original Oompa Loompa compositions (including "Pure Imagination" and "The Candy Man"), and the ending dialogue for the movie. In 1996, Dahl's second wife, Felicity, commented
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".