If you loved Doctor Dolittle, try The Incredible Mr. Limpet
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Theyboth carry the cozy, playful mood tags, and they sit in Comedy / Family / Fantasy territory. If that's the register that drew you to Doctor Dolittle, the second film will land in a comparable space — through a different lens.
cozyplayful
What The Incredible Mr. Limpet is
Apparently fish are the answer to wartime prayers. Henry Limpet becomes a fish. It predictably gets silly.

