What is a "derivative of a derivative"?

A "derivative of a derivative" refers to a work that is adapted from another derivative work. This implies that it takes an existing derivative work—one that is already based on an original creation—and modifies or builds upon it further.

In context, for a work to be a derivative, it must be based on an earlier original work, such as a film adaptation of a novel. A "derivative of a derivative" would involve taking that film adaptation and creating something new from it, perhaps a video game or a sequel that continues the story established in the film.

This concept is relevant because each layer of adaptation can introduce new elements while still being rooted in the previously established work. It emphasizes the ongoing nature of creative processes and how new creations can continue to emerge through transformations and adaptations of existing works.