Help! I'm A Fish (2000)
Release Date: 10 August 2001
Fly, Stella and Chuck are three children preparing to set off on a fishing trip. The trio stumble upon Professor MacKrill's laboratory, and Stella accidentally drinks a potion which transforms humans into fish. Realising that his sister's life is at risk, Fly also takes the potion, and embarks on a perilous mission to save Stella from remaining as a fish for the rest of her life.