Following Lord Camber's Ladies, Hitchcock ended his time with British International Pictures and moved to Gaumont British Picture Corporation, Ltd. where he would direct this and the following 6 films in his cannon. From what I could gather, this film was assigned to him (considering following Rich and Strange and Number Seventeen, his reputation had dwindled) and was based on a 1930 stage musical of the same name.
The story deals primarily with Johann Strauss II (played by Esmond Knight and called Schani in the film) and his desire to compose despite his father (Edmund Gwenn) thinking his son's works are laughable and not worthy of his name. Schani meets the Countess Helga von Stahl (Fay Compton) who recognizes his talents and says she has influence to get the elder Strauss to play his works. Schani then works on composing the Blue Danube Waltz, inspired by his girlfriend Resi (Jessie Matthews) who works in her father's bakery. When Schani proposes marriage to Resi, her father says he should give up his music and concentrate on actually earning a living. He completes his waltz however, but when it comes time for it to be played, will his father accept it? Will Schani be able to choose between Schani and the Countess?
Hitchcock is very dismissive of the picture saying it was made at the lowest ebb of his career. I think that overshadows the fact that the movie isn't that bad. It is somewhat slow moving because it seemed Hitchcock was required to tell more of a story, but there are some nice humorous touches in the movie. The music is used very well (putting a squash on Hitchcock's assessment that the movie was "a musical without music", however being in the public domain, there isn't a really good restoration out there that takes advantage of the audio.
The Yorkshire Post commended Hitchcock for making the movie take advantage of nuances that the stage production could not provide, as well as doing a fine job of integrating the Strauss melodies. I would also give a lot of props for Compton's performance as the Countess, actually giving a characterization as woman with a use for the head on her shoulders, rather than just window dressing.
One person who oversaw production of the movie, Michael Balcon, who had given Hitchcock his first directing opportunity with The Pleasure Garden, asked Hitchcock what he would be doing next. The result would be a new phase in Hitchcock's career starting with the film for discussion next week.