Gritta of the Rat's Castle
Gritta von Rattenzuhausbeiuns (original)
The tale of young Gritta who lives with her father, an unsuccessful inventor. When her new stepmother tries to put her away in a convent she discovers some dark secrets there.
Starring Nadja Klier, Marc Lubosch, Hermann Beyer, Fred Delmare, Peter Sodann, Wolf-Dieter Lingk, Ilja Kriwoluzky, Heide Kipp, Peter Dommisch, Horst Papke
It's a action & adventure and family movie, and has a rating of 6.7 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Denmark.