Bitter Sweet.

The first film adaptation, and most faithful, of Noel Coward's 1929 operetta Bitter Sweet. This tells the story of Sarah Linden's romance, the tale begins with Sarah, now older, reminiscing about her first love. As a young girl Sarah falls in love with Carl, a musician, and runs off with him to Vienna. They are happily wed and Carl earns a living conducting a small orchestra. Enter a certain Captain who sets his eye on Sarah and proceeds to shower her with his attentions, much to her dismay.