A number of the Wonka-branded products actually did originate in the book and later films, such as the Everlasting Gobstoppers and the Wonka Bar, while others were originally created or acquired for the brand.
Film director Mel Stuart's 10-year-old daughter read the book Charlie and the Chocolate Factory and asked her father to make a film out of it. Stuart showed the book to producer David L. Wolper. Wolper convinced the Quaker Oats Company, who had no previous experience in the film industry, to buy the rights to the book and finance the picture for the purpose of promoting a new Wonka Bar through their Breaker Confections subsidiary. The original Wonka bar was not released with the film because of factory production problems, but later product releases were successful. Breaker Confections was renamed the Wonka Candy Company and eventually sold to Nestlé.
1 Currently manufactured by General Mills in the United States. Produced by Cereal Partners under the Nestlé brand elsewhere. 2 Brand owned by General Mills; U.S. and Canadian production rights controlled by Nestlé under license. 3 U.S. production rights owned by The Hershey Company. 4 Canadian production rights owned by The Hershey Company. 5 U.S. rights and production owned by Smarties Candy Company, with a different product. 6 U.S. rights and specific trade dress owned by Nestlé; rights elsewhere owned by Associated British Foods. 7 Produced by Cereal Partners, branded as Nestlè. 8 Produced by Cereal Partners, and Branded Nestlé in The United Kingdom, and Ireland. Produced by Post Foods, elsewhere.