You can tell this is an anime series and not a movie. The direction and pacing of the movie feels like very separate situations without any relation between them. The background stories are too long and cuts the climax of the movie. I feel like you could do a better job combining combat with the background of the enemies. Especially for the last fight. At the end of the movie you don't get the feeling of a shonen-like final or any cliffhanger making you expect the next movie. Besides that you will still get the undisputed high quality level of demon slayer and get reminded ofthe beauty of animated movies.