1. The story of Charlie and the Chocolate Factory was originally a bedtime story Dahl made up for his first two children, Olivia and Tessa.
2. The book was first published in September 1964 and was said to have brought ‘sheer joy’ to all who bought the 10,000 copies within the first week.
4. Archived in the Roald Dahl Museum and the Story Centre in Great Missenden, Buckinghamshire are five drafts of Charlie and the Chocolate Factory – originally called Charlie’s Chocolate Boy. Within the early drafts, one featured Charlie as one of ten children chosen instead of the known five, whilst another saw Charlie falling into a chocolate mould.
5. In 1971, a postman from Nebraska, claiming to be a real-life Willy Wonka, wrote to Dahl; these letters revealed Dahl’s inspiration for the name of the character from his elder brother’s boomerang named Skilly Wonka.
6. Mr Willy Wonka was first known as Mr Ritchie, whilst the Oopma-Loompas were originally known as the Whipple-Scrumpets until the very last moment.
7. Having attended school at Repton Public School in Derbyshire, Dahl’s love for chocolate increased as the students were sent chocolate from Cadbury to taste-test. This resulted in Dahl dreaming of inventing a new chocolate bar and influenced the stories of Charlie.
8. The 1971 film adaptation of Charlie and the Chocolate Factory was at the request of director Mel Stuart’s daughter, Madeline, who read the book three times and wanted it to become a film.
9. Dahl wanted either Peter Sellers or Spike Milligan to play Wonka in the 1971 film. However, Stuart and Wolper wanted all-Tony-Award-winning stage actor Joel Grey; however, after the audition of Gene Wilder, they knew they found Wonka.
10. It was said that Dahl disliked the film, Willy Wonka and the Chocolate Factory (1971), due to the large emphasis on Wonka instead of Charlie. As a result, he blocked any more films from being created during his lifetime.
12. Dahl had intended to write a third book, Charlie Bucket and the White House; however, it was not finished before his death.