- Filmed on the abandoned sets built in London for Cleopatra (1963).
- Producers of this film were successfully sued by 20th Century Fox Studios after it was judged the movie poster, which parodied that of Cleopatra (1963), was so similar to be a breach of copyright.
- The owners of British department store Marks and Spencer were alerted to a send-up of their store's name ("Marcus and Spencius") and associated use of the store's colours (green and gold) and called in their lawyers. Fortunately legal action was averted when it was explained no slight against the store was intended, and the owners settled for an apology and letter of explanation to be sent to a leading newspaper. Even this idea was later dropped and the incident forgotten.
- The costume used by Sid James in this film is the one used by 'Richard Burton' in Cleopatra (1963).
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