Warner Bros. Entertainment Inc. v. RDR Books the market for reference works. According to Judge Patterson, even a copyright holder as eager as Rowling is to control through licensing all related markets must face limits. Warner Bros. Entertainment Inc. v. RDR Books Warner Bros. Entertainment, Inc. and J. K. Rowling v. RDR Books, 575 F.Supp.2d 513 (SDNY 2008) is a copyright lawsuit brought on 31 October 2007 by the media company Warner Bros. and "Harry Potter" author J. K. Rowling against RDR Books, an independent publishing company based in Muskegon, Michigan. Lawyers for Rowling and Time Warner argued that RDR's attempt to publish for profit a print
The Magical Worlds of Harry Potter in March 2001 and hired a company to take care of accounting, marketing, promotion, and selling. Colbert has never met Rowling and the book has not been approved by her or Warner Brothers (the owner of the film rights to the "Harry Potter" novels). He was given permission to publish it as long as he noted on the cover that it had not been approved by Rowling. The book has been met with positive reactions from critics. Margie Thomson of "The New Zealand Herald" commented that "it's interesting, although light, and should keep smart-alecky kids and the truly curious happy