From Screen Rant:
Despite being kids movies, Disney films have a reputation for including dark elements like the death of a parent or villains hiding behind a pretty face. But the original stories many Disney movies are based on are even darker and more gruesome than what makes it into the final animated feature. We’ve already gone over the twisted tales behind Cinderella, The Little Mermaid, and other popular animated films, but we’ve got even more dark stories that inspired Disney movies.