For me the first thing that comes to mind is Tales from Earthsea. I don’t think it’s excellent or anything and has plenty of problems but people act like it killed their dog. While it has its problems that have been covered extensively, I think it has a beautiful atmosphere and art.
IMO it would have been better received if it wasn’t advertised as an Earthsea adaptation and was just its own thing.
Ah, that’s one of my favorites. It’s just so sincere and fun. It’s definitely unrefined, like a student film that somehow got a massive budget, but that is part of its charm.