A WARNING TO ALL PARENTS: This movie is probably most suitable for 12-13+.
I'm only 15 minutes in, and it's already showcased sexual affection drawings of a teenage boy the main character, Mei Mei, has a crush on. She described the drawings as "sexy" and blatantly drew them shirtless.
I'm not sure how this could come off as a Disney movie, at this point. It freely expresses the menstrual cycle, fantasizing about boys, calling them "hot", and talking about things suited for a more mature audience.