There is another film structure that is super common but is often overlooked. It is perhaps not coincidental that the protagonist is more often a woman. I found a blog post describing it once, but can't find it now.
In the typical three-act structure, the protagonist must make an internal change to themselves before they are able to resolve the conflict.
In this alternate plot structure, it is the community itself that must change. The protagonist is "right all along" and serves to the be the catalyst for that change. Almost as if society is the protagonist. It looks something like:
1. Inciting incident where problem appears.
2. Protagonist attempts to tackle problem using their "true self".
3. Family/village/community smacks them down and says they can't do that.
4. Protagonist tries to conform and solve the problem the way they are told to but fails.
5. Climax: Running out of options, the protagonist unleashes their true inner self and solves the problem.
6. The community witnesses this and realizes that they should accept the protagonist for who they are.
This is very common in Disney movies (Mulan and Frozen being stellar examples) and in family movies where the protagonist is a young person that "no one understands".
It is sometimes mixed with the typical three-act structure where the protagonist also makes an internal "change", but the change is most often simply accepting who they already were at the beginning of the film before trying to deny that throughout the second act.
You can regard this is a story with a flat character arc. It's still pretty much a 3-act structure, sort of a dual version of it.
Weirdly, Unicorn Store was the first thing that came to mind. Which is funny when you consider that it was essentially a sort of weird meta-prequel to Brie Larson and Samuel L. Jackson's turns in Captain Marvel.
I think that is exactly the plot in Ne Zha 2, a chinese animation that is breaking records. The trailer is awesome.
princess mononoke fits the bill
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Moana might actually be a better example than Mulan or Frozen, because there's not even any inner turmoil outside of the very beginning.
Moana herself is just about the only person who doesn't have a character arc, she just gets better at doing the things she was already set on doing. Both Maui and the entire village of Motunui including her family need to learn that Moana is actually right about everything.
She's effectively an avatar of the ocean's will, and the more she leans into it, the better it goes for her.