Development The film was based on an original story by Cecil Kellaway which he had written in between acts while performing in
White Horse Inn on stage. Hall liked the basic idea but said Kellaway was unable to put it down to paper. Hall originally imported American writer
Carl Dudley from Los Angeles to adapt it into a feature film script. Dudley intended to stay in Australia for 12 months. Hall had the script worked on by playwright and actor
Frank Harvey, who had recently joined Cinesound as a dialogue director. Hall later said "Harvey and I got together and worked it [Kellaway's idea] into a script, retaining all his basic ideas, and the basic theme, because the original idea appealed to both of us. Harvey was very English, educated at Winchester where ‘Manners maketh the man’ was the motto, you know. Very English." It has been argued the script may have been influenced by
Clara Gibbings (1934) a film made by Harvey. "If anything, the English will get more knocks than the Australians", said Hall at the time. "But there will be hits at both sides-nothing malicious; just a good-humoured conflict of ideas." He later elaborated, "Gently rubbishing the British. Gently rubbishing Australians too. That’s why the film succeeded in both England and Australia. There was no dirt thrown at any time. It was a ‘sling off‘, as we say in the vernacular, but it was still pro-British in sentiment. Don’t forget that the Australian people were tremendously British-oriented round that time." At one stage the film was called
Something in Common. The title was changed to ''It Isn't Done'' just before filming.
Casting The film marked the feature debut of
Shirley Ann Richards who was a graduate of Cinesound's Talent School, run by Harvey and George Parker. Although she was not very experienced, she proved a natural and was enormously popular. She was signed to a long-term contract with Cinesound and went on to appear in several of their films. ==Shooting==