Kenneth Cope was considered for the role of Albert Poop-Decker.
Liz Fraser was originally cast in the part of Sally.
Talbot Rothwell's first screenplay for the series. He would go on to write 20 of them.
First Carry On... film made in costume and with a historical setting.
The original title - "Up the Armada" - didn't find favor with the British Board of Film Censors.
This entry in the series featured the lowest number of "Carry On..." regulars, with only three appearing: Kenneth Williams, Charles Hawtrey and Jim Dale.