First, this film is not available ANYWHERE. If someone knows where a complete version of this is available for sale or streaming, let me know.
My daughter saw this via a YouTube upload. The first 10 minutes were missing, but she still liked the concept of a place for orphan and lost animals to go and spirit guardians that are shape shifters.
This is not REAL native American mythology, but rather a child's interpretation of it.
I only wish I could find a compete version for my daughter who insists on see this even chopped up. I would note that she (at seven) is not unsophisticated in made up mythology films. She is a huge fan of all of Myazaki's films and went as "Princess Mononoke" for Halloween.