Harry Potter and the Prisoner of Azkaban (film) 2004 in Europe. Mattel released film tie-ins that included the "Harry Potter Championship Quidditch" board game and character action figures. Lego also expanded on its previous merchandising for the first two films with the release of sets ranging from the Knight Bus to the Shrieking Shack. "Harry Potter and the Prisoner of Azkaban" held its New York premiere at Radio City Music Hall on 23 May 2004, followed by its London premiere at Leicester Square on 30 May 2004. The film then opened in the United Kingdom on 31 May 2004 and on 4 June 2004 in the United States.
The Books of Magic began publishing a series of "Books of Magic" young adult novels under the Eos imprint, adapted from the comics series, by Carla Jablonski. Each novel featured cover art by Christopher Moeller. The first book is based on the original miniseries. The subsequent books are based on story arcs in the second series; except "The Children's Crusade", which is based on the Vertigo crossover event of the same name. A film version of "The Books of Magic" has been in development hell for many years. It was originally optioned "by Warners some years before the first Harry Potter book was published"