Harry Potter and Nielsen should have created a separate game-show list when "Who Wants to Be a Millionaire?" dominated the ratings. In 1998, Rowling sold the film rights of the first four "Harry Potter" books to Warner Bros. for a reported £1 million ($1,982,900). Rowling demanded the principal cast be kept strictly British, nonetheless allowing for the inclusion of Irish actors such as the late 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. After many directors including Steven Spielberg, Terry
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