The difficulty of adapting a youth novel into a movie mainly included the following aspects: 1. Different audiences: Youth novels are usually targeted at young readers, while movies are mainly targeted at the general audience. Therefore, during the adaptation process, factors such as the audience's age, gender, and cultural background needed to be taken into account to ensure that the adapted film could meet the market demand. 2. Difficulty of plot adaptation: The plot of youth novels is often more complicated, including a large number of character relationships, emotional entanglements, and plot twists. When adapting it into a movie, the plot needed to be simplified and easy to understand while maintaining the original theme and depth of the novel. This required the creator to conduct in-depth research and thinking to ensure the logic and cohesiveness of the film's plot. 3. Character Creation: The characters in youth novels are usually more profound and rich in personality and emotional content. When adapting it into a movie, these characters needed to be appropriately cut and adjusted to make the movie plot more compact. At the same time, they had to ensure that the adapted characters matched the theme and atmosphere of the movie. Setting and special effects: Youth novels usually contain a large number of campus scenes and outdoor activities. When adapted into a movie, they need to be adjusted and deleted accordingly to meet the requirements of the movie's length and visual effects. In addition, special effects and animation effects were often used in youth movies, which required the creator to have relevant technical ability and experience. 5. The copyright issue: After a youth novel is adapted into a movie, it needs to obtain the copyright of the novel and the authorization of the adaptation rights. During the adaptation process, copyright laws and regulations must be observed to ensure that the adapted film did not violate the copyright of the original work. At the same time, the adapted film also had to comply with the relevant regulations of the film copyright to avoid copyright disputes.