Claim: Chitty Chitty Bang Bang is loosely based on Ian Fleming's 1999 movie  Chitty-Chitty-Bang-Bang: The Magical Car.
Evidence: 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.