I wish somebody would just take the original ETA Hoffmann story and adapt that. While the ballet is fairly simple and would need to be expanded upon in order to make a complete movie, the original story is very complex, and could make a really good movie. Unfortunately, nobody ever reads the book, so people end up making up their own story.
From some arguments in the comments on Facebook, I've seen several people countering people's complaints by claiming that this movie is trying the follow the original story more. But I know that's not true. The protagonist of the original story is named Marie, not Clara. If they can't even get the name right, that tells me how much they care about the story.
But there is one good thing about this movie: It's not as bad as Peter Rabbit.