Knight's Treasure
Die Schatzritter und das Geheimnis von Melusina (original)
Eleven years old Jeff and his friends are looking for a treasure buried in the old castle.
Starring Anton Glas, Alexandra Neldel, Luc Feit, Clemens Schick, Vicky Krieps, Lana Welter, Elisabeth Brück
It's a action & adventure and family movie, and has a rating of 5.5 out of 10 from Imdb which is fairly okay for this kind of movie.
Watch it here
Not found streaming from Sweden.