The Rescuers

The Rescuers by Walt Disney Company (based on Rescuers and Miss Bianca by Margery Sharp)

The rescuers are mice that go on a mission to save a human girl. The girl has been kidnapped by a some diamond thieves who use her because her small size enables her to go into the mine. The thieves find the big diamond and try to sneak it out in the girl's teddy bear. However, she trips, and the mice and girl end up with it and they get away. There are some fun parts like a "bird" airline. The story works as a whole, but there seem to be some jumps of logic in the details. (Why does the thief hide it in a stuffed animal? And why did it rely on a single trip for the case to be solved?)