Film adaptation is the process of transforming a written work, such as a novel, play, or short story, into a movie. This involves interpreting the original material and making creative choices about how to present the story visually. Filmmakers often need to condense the plot, develop characters, and create a screenplay that captures the essence of the original work while making it suitable for the screen. Many popular films, like Harry Potter and The Great Gatsby, are based on books. While adaptations can bring new audiences to the original stories, they may also face criticism from fans who feel that important elements were lost or changed in the transition to film.