There were usually a few reasons why a novel was adapted into a movie: 1. Business considerations: The audiences of novels and movies are different. Usually, novels are more suitable for independent reading while movies are more likely to attract audiences. Therefore, some novels were adapted into movies to gain wider recognition and box office earnings among a wider audience. Increase Popularity: Adapting a novel into a movie can help increase the popularity of the novel. The adaptation of the movie could allow more people to understand the novel and attract more readers. In addition, adapting it into a movie could also increase the influence and topic of the novel, making it easier for the novel to become a public topic. 3. Create new experiences: novels and movies can give people different sensory experiences. The adaptation of the novel into a movie could make the novel more visual and create a new experience. The adaptation of the novel into a movie could also make the novel more vivid, exciting, and intense, making it easier for the audience to immerse themselves in the story. Changing the storyline: The storyline of a novel and a movie can be different. Adapting a novel into a movie could make the story more compact and exciting, but it could also make the story more complicated and thrilling, making the audience more involved. 5. Expanding the audience: Adapting the novel into a movie can allow more people to understand the novel and thus expand the audience. The adaptation of the novel into a movie could also attract more audiences, making it easier for more people to accept and like the novel.