Der Hasenhüter(1977)

The young shepherd Konrad wants to ask the princess to marry him. All the exhortations of the kitchen maid Anne are to no avail. With the help of a magic flute, Konrad solves all the tasks set by the king and the princess. In doing so, he recognizes the princess's true character and so he decides in favour of Anne, not without first severely punishing the greed of the royal court.