Harry Potter and the Goblet of Fire (film) being presented to Dan Radcliffe on set of "Order of the Phoenix" at Leavesden Film Studios in April 2006. In the United States, the first five Harry Potter films were released on HD DVD and Blu-ray disc on 11 December 2007. The fourth film has since become available in numerous box sets containing the other films released in the series, including the "Harry Potter: Complete 8-Film Collection" and "Harry Potter Wizard's Collection". An Ultimate Edition of "Goblet of Fire" was released on 19 October 2010, featuring behind-the-scenes footage, trailers, additional scenes, and a feature-length special "Creating the World of Harry
The Magical Worlds of Harry Potter approval from Rowling, and has since received positive reviews from critics. An updated version of "The Magical Worlds of Harry Potter" was published in 2004 by Berkley Books. "The Magical Worlds of Harry Potter" explores the references to history, legends, and literature in J.K. Rowling's "Harry Potter" novels. David Colbert, the author of the book, told the "St. Louis Post-Dispatch" that the "Harry Potter" novels "are [...] literary treasure hunts for [Rowling's] readers. What seem like funny-sounding names and places and excursions into fantasy all have a basis in either history, myth or legend." He added, however, that he thinks