More and more often filmmakers have been turning to children’s books for inspiration. Perhaps it’s a catchy book title that a filmmaker finds intriguing or maybe an idea they want to flesh out. Maybe they simply want to build on existing popularity.
Sometimes it works well. Many of us are wild about Harry, for example. I’m a Harry Potter fan in both the novel and film version, and frankly I find the 1936 movie version of Wizard of Oz more engaging than the book.