The Little Mermaid
In 1957, Germaine Tailleferre wrote a three act opera with the subject. In 1968, there was a Soviet animated movie. In 1976, a co-production of the Soviet Union and Bulgaria resulted in a live-action movie. In 1989, The Walt Disney Company also made an animated movie. In 2008, Studio Ghibli made a movie inspired by the story called Ponyo.