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.
Magic in Harry Potter books present the idea that the Muggle interpretation of these stories is a distorted version of what goes on in the wizarding world. The magic of "Harry Potter" became the subject of a 2017 British Library exhibition and accompanying documentary. The exhibition, entitled "Harry Potter: A History of Magic", is the first at the British Library to be inspired by a single series by a living author. Witches and wizards need training to learn how to control their magic. With young and untrained children, magic will manifest itself subconsciously in moments of strong apprehension, fear, anger and sadness. For example,