Presenting Lily Mars
Starring Judy Garland, Van Heflin, Fay Bainter, Richard Carlson, Spring Byington, Connie Gilchrist, Mártha Eggerth, Leonid Kinskey, Annie Ross, Tommy Dorsey
It's a comedy and music movie, and has a rating of 6.8 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Austria.