Der Prinz hinter den sieben Meeren (1982)

The merchant's daughter Constanze, begs her father to ask a lion for a favor. Her father approaches the lion who agrees to his request with one condition: that he send the first person he meets upon his return home to the lion's den. It is Constanze. Against her father's will she goes to the lion and discovers that he is an enchanged prince and that only a woman's love can release him from the spell.