How do movies get adapted from plays or musicals?

Movies are often adapted from plays or musicals by turning the original story into a screenplay, which serves as the basis for the film. During this process, changes are often made to the story, characters, and dialogue to better fit the needs of the visual medium of film. Some adaptations may also incorporate new scenes, characters, or plot elements that are not present in the original work.

The adaptation process usually involves a team of screenwriters, producers, and directors working together to develop the screenplay. They may work closely with the original playwright or musical composer to ensure that the adaptation stays true to the spirit of the original work. Additionally, the adaptation may be subject to creative decisions that aim to improve the story's appeal for a contemporary audience.

Once the screenplay is developed, the movie production process begins, which involves casting, filming, and editing the movie. Throughout this process, the filmmakers work to create a cohesive and visually engaging final product that can stand on its own, separate from the original work.