A Japanese boy rescues a goldfish trapped in a jar in the ocean and brings it home. His new "pet," however, is an underwater wizard's headstrong daughter who sets out to become human and stay with her new friend, in this animated aquatic odyssey from Japanese filmmaker Hayao Miyazaki. With the voices of Noah Cyrus, Frankie Jonas, Cate Blanchett, Tina Fey, Liam Neeson, and Betty White.