Champagne Waltz is one of five movies produced by Paramount in the 1930s featuring Gladys Swarthout, a very popular Metropolitan Opera mezzo-soprano. The studio was attempting to build on the popularity of Grace Moore, another opera singer, who had also expanded her talents into movies.
In 1930s Vienna where the Strauss family still reigns, a jazz bandleader and his orchestra become the rage, eventually winning waltz audiences. Then the Strauss granddaughter mistakes the American musician for the consul and they fall in love.—BSK