Chitty Chitty Bang Bang

Chitty Chitty Bang Bang is a 1968 British musical adventure fantasy film, directed by Ken Hughes and written by Roald Dahl and Hughes, loosely based on Ian Fleming's 1964 novel Chitty-Chitty-Bang-Bang: The Magical Car. The film stars Dick Van Dyke, Sally Ann Howes, Adrian Hall, Heather Ripley, Lionel Jeffries, James Robertson Justice, Robert Helpmann and Gert Fröbe.

Question: is chitty chitty bang bang just a story
Answer: yes