Bitter Sweet (1940)

In order to avoid an arranged marriage with a man she doesn't love, Sarah Millick runs off to Vienna with her music teacher, Carl Linden, whom she does love. They are married. In Vienna, they struggle to make a living by making music. Carl writes an operetta and tries to get it produced. They are helped along by Viennese Baron, but his intentions are not honorable. He kills Carl in a sword fight. A big producer does put on the operetta, with Sari in the lead -- but without her husband, it is a bittersweet victory.