Harry Potter and the Unauthorized Derivative Work
Defendant publishes Harry Potter reference work, based in part on a fan encyclopedia. Harry Potter publisher and author sue.
Text of complaint in Warner Bros Ent and JK Rowling v RDR Books, SDNY Oct 31 2007.
Text of decision referred to in complaint: Castle Rock Entertainment v Carol Publishing, 150 F.3d 132 (2d Cir 1998) (Seinfeld trivia book).