The company wanted to start manufacturing Willy Wonka-branded candies and candy bars. So they wanted the title changed from Charlie and the Chocolate Factory to Willy Wonka & the Chocolate Factory.

Since the 60s there have been three different film adaptations of Dahl's book. Wonka Bars made their on-screen debut in 1971's Willy Wonka and the Chocolate Factory with Gene Wilder.

Mysterious candyman Willy Wonka runs a competition for five lucky children to tour his factory if they get their hands on ...