I thought Pickett v Prince established precedent that you can’t copyright an unauthorized derivative work. See 17 U.S.C. §103(a), which says that derivative wo

I thought Pickett v Prince established precedent that you can’t copyright an unauthorized derivative work. See 17 U.S.C. §103(a), which says that derivative works can be copyrighted, but that does not extend to any part of the work in which such material has been used unlawfully. (not a lawyer but I did audit this class at a law school)