The film was produced by
Julius Hagen, the owner of a film production company based around
Twickenham Studios. The film was shot at one of his other studios,
J.H. Studios at
Elstree, and also included extensive location filming in the
Alps. It was directed by Vorhaus who had worked on earlier films for the company. Vorhaus was so impressed by the performance of Margaret Rutherford in a theatre production he saw her in, that he insisted on casting her in the film, adding a new
comic relief role to the original play especially for her. The film's
art direction was by
Andrew Mazzei. Hagen had an ambitious programme of films for 1936, but his failure to secure effective distribution led to financial problems and the collapse of his company the following year during the Slump of 1937. Vorhaus directed one further British film,
Cotton Queen (1937), before returning to America. In the forgers' lair the printing presses shown are all made by the Adana company of Twickenham and completely unsuitable for the production of currency notes. ==References==