Legal disputes over the Harry Potter series October 2007, Warner Bros. and Rowling sued Michigan-based publishing firm RDR Books to block the publication of a 400-page book version of the Harry Potter Lexicon, an online reference guide to her work. Rowling, who previously had a good relationship with Lexicon owner Steve Vander Ark, reiterated on her website that she plans to write a "Harry Potter" encyclopedia, and that the publication of a similar book before her own would hurt the proceeds of the official encyclopedia, which she plans to give to charity. A judge later barred publication of the book in any form until the case was
The Wizarding World of Harry Potter Both Disney and Universal entered bidding negotiations with Warner Bros. and Rowling for the theme park rights to "Harry Potter". In 2004, Rowling signed a letter-of-intent with Disney, with the company intending to develop a "Harry Potter" section within the Magic Kingdom park at Walt Disney World. Ultimately, Disney pulled out of negotiations, citing that Rowling's creative influence and the terms established by Warner Bros. was too stringent. In January 2007, About.com reported a rumor from a "highly credible source" that the Islands of Adventure park's Lost Continent area was going to be re-themed "to the stories and characters of