First film of Joy Shelton.
Grandpa Jim comments that his daughter Phyllis has progressed from dating "local lads" to "the United Nations". Interestingly, although the international organization with that name did not exist until two years after the film's release, the term "United Nations' was used to describe the allied forces arrayed against the Axis Powers. FDR used the term frequently.
Rather strangely there is a specific reference to the small, and relatively unknown, south Leicestershire town of Market Harborough. The hometown of Celia's 'first' apparent romantic encounter, a dull, odd-looking young man, poorly dressed and perhaps a little slow ('Johnathan Field (I)' - uncredited). It appears to be a running gag and the apparent hostility is essentially a mystery, although the town may have been a through-point or stop-off for commuting northern crew/cast via train. It has been suggested that it was a general dig at the rural East-midlands, rumored to have had a higher than average percentage of men unfit to fight, known for its odd-stock. On the other hand it may have been to satisfy the easily pleased audiences at hearing a familiar name to mock or otherwise.
The film was passed for US release by the Production Code Administration on condition the word 'hell' be deleted throughout.
The first film of Brenda Bruce.
The fourth cinematic appearance of Charters and Caldicott, played by Basil Radford and Naunton Wayne. They previously appeared in The Lady Vanishes and Night Train to Munich, films also written by Sidney Gilliat and co-director Frank Launder. They also appeared in Crook's Tour, which was adapted from a BBC Radio serial. Although this was their final appearance as Charters and Caldicott, Radford and Wayne appeared together as similar comic characters in other films, such as Passport to Pimlico.