Harry Potter (film series) was that the principal cast be kept strictly British, allowing nevertheless for the inclusion of many Irish actors, such as Richard Harris as Dumbledore, and for casting of French and Eastern European actors in "Harry Potter and the Goblet of Fire" where characters from the book are specified as such. Rowling was hesitant to sell the rights because she "didn't want to give them control over the rest of the story" by selling the rights to the characters, which would have enabled Warner Bros. to make non-author-written sequels. Although Steven Spielberg initially negotiated to direct the first film, he declined
Harry Potter (film series) in the "Harry Potter" franchise — "Harry Potter and the Prisoner of Azkaban", "Harry Potter and the Goblet of Fire", "Harry Potter and the Order of the Phoenix", "Harry Potter and the Half-Blood Prince" and "Harry Potter and the Deathly Hallows", Parts 1 & 2 — have to date grossed around $216 million in IMAX theaters worldwide. The "Harry Potter" films and their success have been retrospectively considered to have had a significant impact on the film industry. They are cited as having helped redefine the Hollywood blockbuster in the 21st century by initiating a shift toward established media franchises