Question: What is the nationality of this novelist, short story writer, poet, screenwriter, and fighter pilot who wrote the novel that inspired the 1971 film "Willy Wonka & the Chocolate Factory?"
Sentence (from "Charlie and the Chocolate Factory (film)"): Charlie and the Chocolate Factory is a 2005 musical fantasy film directed by Tim Burton and written by John August, based on the 1964 British novel of the same name by Roald Dahl.
Relevant evidence: No