One Romantic Night

One Romantic Night is a 1930 American PreCode film. It is the first sound film version of Ferenc Molnrs play The Swan, and marked silent screen star Lillian Gishs talkie debut. She starred as Princess Alexandra, with Conrad Nagel as the tutor who falls in love with her, and Rod La Rocque as Crown Prince Albert. The film was only fairly successful, though Gish would go on to become as highly regarded in talking pictures as she had been in silent films.

Source: Wikipedia