The Affairs of Dobie Gillis
Starring Debbie Reynolds, Bobby Van, Barbara Ruick, Bob Fosse, Hanley Stafford, Lurene Tuttle, Hans Conried, Charles Lane, Archer MacDonald, Kathleen Freeman
It's a comedy and music movie, and has a rating of 6.1 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Germany.