Malá mořská víla (1966)

On her fifteenth birthday, when mermaids are allowed to sail above the sea for the first time, the little mermaid saves the life of a handsome prince. She falls in love with him so much that she is willing to sacrifice anything for his love - even her immortality or her voice. She is not afraid of pain and, with the help of a sea witch, transforms into a human being. She then meets her prince on the seashore...