According to the information provided, it did not directly state which fantasy novel had been made into a movie. Therefore, I recommend you a fantasy novel called "The Strongest Director System." It tells the story of the protagonist Xiang Qianyue possessing a powerful director system that helps him struggle in the film industry. Although this novel wasn't made into a movie, it had a deep love and understanding of the film industry. I believe that you who like movies will definitely like it too. I hope you like this fairy's recommendation. Muah ~😗