Follow your heart and nothing is impossible.

Born of a flower and growing to only a couple of inches tall, poor Thumbelina is worried she'll never meet someone her own size, until she happens to catch the eye of Prince Cornelius of the Fairies. Just as soon as she finds love, however, it's torn away when she's kidnapped by Ms. Toad. Now Thumbelina has to escape Ms. Toad's grasp and search for Prince Cornelius. Luckily, there's a whole city of animals willing to help.
Thumbelina keeps every mind human — it fights its subject at zero distance. The story fights on E8/E9 of the E0–E14 reality ladder, compressing size, identity, love, prejudice, otherness.
Films fighting at the same level of reality, about the same things.
The same preoccupations examined at another scale — one mind versus a nation.
Other films that change a standing rule of their world — ranked first by those bending it at the same rung.