Im Weissen Rössl - Wehe, du singst!
Starring Diana Amft, Tobias Licht, Fritz Karl, Edita Malovčić, Armin Rohde, Gregor Bloéb, Julia Cencig, Aykut Kayacık, Sarah Wiener, Ben Ruedinger
It's a comedy and musical movie, and has a rating of 5.6 out of 10 from Imdb which is fairly okay for this kind of movie.
Watch it here
Not found streaming from Denmark.