1. adapted into the form of a novel

1. past tense of novelize: to adapt (a story, screenplay, etc.) into novel form

Examples

• The popular movie was later novelized by a bestselling author.
• She novelized the screenplay into a full-length book.
• The novelized version included more character development than the film.
• Many successful films have been novelized for readers.
• The author novelized her own short story into a complete novel.
• The novelized adaptation became more popular than the original play.