this is a 2008 high school au of la princesse de cleves, which is one of my favorite books ever - it’s an extremely strange female-written court drama from 1678 that is widely regarded as the first modern (as well as the first psychological and first historical) French novel. the movie version is SHOCKINGLY faithful to the plot of the book despite being set in a modern high school. Also, the main character is played by Lea Seydoux, who holds my beating heart in her beautiful hands. The whole thing is available on YouTube and I have linked it in this post!