An adaptation: modifying an original work (novel, play, etc.) into another form or medium, such as turning a novel into a film or stage play.
その映画は有名な小説を翻案した作品だ。
That movie is a work adapted from a famous novel.
漫画をドラマに翻案する際、設定を現代風に変えた。
When adapting the manga into a drama, they updated the setting to a modern style.
翻案権の扱いは著作権と密接に関係している。
The handling of adaptation rights is closely related to copyright.