Jim Dale did all his own stunts during the filming. At one point, he was taken to hospital after his arm repeatedly banged against a delivery trolley, causing him to have an emergency operation. The next day, he was back at work doing a stunt where a hammock falls through a wooden floor.
The stunts Jim Dale did when he was an intoxicated Nookey left him with back problems for many years later. The slide down the stairs on a medicine trolley tore a muscle in his left arm, which had to be operated on in hospital. Regardless, he refused to get a stunt double for Nookey's hammock fall, despite Peter Rogers' huge concern.
Jim Dale's last Carry On appearance for twenty-three years until his return in Carry on Columbus (1992).
Although Sidney James (Gladstone Screwer) is first billed, he does not appear until 37 minutes into the film.
The hospital party was filmed in the lunchroom of Pinewood Studios.
Wilfrid Brambell: as Mr. Pullen. This appearance, as well as Harry H. Corbett's starring appearance in Carry on Screaming! (1966)) is often claimed as the reason why Steptoe and Son (1962) was resurrected on the BBC in 1970 after being canceled in 1965. During Brambell's brief appearance in this movie, the show's theme plays.
Eric Rogers: Carry On's regular composer, as well as for this film, as the clarinet player in the jazz band at the hospital party.