First, recall that the copyright owner has the exclusive right to make derivative works.

It's easy to recognize derivative works when you think about music or books.

The work has inspired numerous films, television programs, video games and derivative works.

The right to produce derivative works of the copyrighted work.

A company takes a calculated risk when it does not pursue people who create derivative works without permission.

Such derivative works were also produced throughout communism and after the 1989 Revolution.

There are two obvious extremes with regard to derivative works.

When a film's screenplay is original, it can also be the source of derivative works such as novels and plays.

All derivative works must be licensed under the same license.

This claim is discussed above at Control of derivative works.