A film adaptation refers to a movie that is based on or derived from another source material, such as a book, play, short story, comic book, or even a true event. It involves taking the original work and transforming it into a visual format for the screen, while maintaining its core themes, characters, and plot points. The process of adapting a text to film can be challenging due to the differences in mediums, but skilled writers and directors are able to capture the essence of the original work while also making it accessible and engaging for a wider audience through visual storytelling.