Ponyo
崖の上のポニョ (original)
A 5-year-old boy named Sosuke forges a friendship with a goldfish princess named Ponyo, who desperately wants to become human.
Starring Yuria Nara, Yuria Kozuki, Hiroki Doi, George Tokoro, Tomoko Yamaguchi, Yuki Amami, Kazushige Nagashima, Akiko Yano, Shinichi Hatori, Tokie Hidari
Watch "Ponyo" on Netflix released in 2008. It's a animation and family movie, and has a rating of 7.6 out of 10 from Imdb which is usually fine for this kind of movie.