Trivia: When Commandant Burger yells "Silence!" to Bo West during the parade inspection, West drops the rifle on Burger's foot. Jim Dale accidentally dropped the rifle on Kenneth Williams' foot, his painful reaction was genuine and the injury caused Williams to limp for the remainder of his scenes. Dale swore it was accidental but Williams insisted in his autobiography that it was deliberate.
Trivia: In the United States, the film was released as "Carry On in the Legion".
Trivia: Phil Silvers was dramatically losing his sight during filming, so he had to wear both contact lens and glasses.
Trivia: The horse that the crew used for the desert scenes could only canter, so in order to show the horse galloping, the producer had to speed up the film.
Trivia: Sid James was intending to play the role of Sergeant Nocker, but suffered a massive heart attack and was replaced by Phil Silvers.