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.
Are we talking about the Ghibli Earthsea movie?
I actually enjoyed it, even though I read the books when I was younger. It was an interesting way to tell a large part of the story and doesn't deserve the hate it gets IMO. But it's also not an amazing adaptation either, it's in a weird spot.