The film stars Dick Van Dyke as Caractacus Potts, Sally Ann Howes as Truly Scrumptious, Lionel Jeffries as Grandpa Potts, James Robertson Justice as Lord Scrumptious and Robert Helpmann as the Childcatcher. The film was directed by Ken Hughes. It was produced by Albert R. Broccoli (co-producer of the James Bond series of films, also based on Fleming's novels). John Stears supervised the special effects. Irwin Kostal supervised and conducted the music. The musical numbers were staged by Marc Breaux and Dee Dee Wood.