Pom Poko (1994)

When their peaceful but playful way of life comes under threat by "urban development" a tanuki community is forced to abandon the rundown farmhouse in which they live, a building that was previously abandoned by its human occupants. To combat the human push for modernisation the critters call upon the past, rekindling the ancient tanuki art of shape-shifting.
There are references to the role of religion and superstition in the modern world, but foremost is the themes of ethics and nature and how both are often trodden on by an encroaching and money-hungry industry.
It's a Ghibli film directed by Takahata, not Miyazaki, so if you're planning to let kids watch it be aware that there are some unpleasant deaths. And, worse, you may be required to explain what testicles are; good luck with that part.

3½ bald hills out of 5