I've been building something similar but targeted at bringing content that interests you to your level: https://katarineko.com.
I've been learning Japanese as well and the content at my level is boring while the content I'm interested in is a wall.
Interesting. I've been working on the same problem (you need stuff at a kid's level, but not aimed at kids, if you are interested in the content then it will be easier to learn): https://tailoredreaders.com/samples
I think I like your solution better than mine, which is basically generating children's books from user prompts.
When you say you generate stories from the films, are you summarising / simplifying the narrative of scenes in the film (to down level the language), or creating something new, just with the vocabulary the film uses?
How does this product compare to the methodology of dreaming.com?
Ahh nice, hope it goes well!