Imitation is the sincerest form of flattery. Isn’t that how an article about derivative works is supposed to begin? We only ask because there are probably other articles out there on this topic that begin the same way. Whether or not we admit it to ourselves, 100% true originality in the case of media like books, film, music and games is practically unheard of. That’s not a bad thing; works that build on one another can be some of the richest experiences imaginable. On the other hand, some people are just lazy and rip-off other, greater works.