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 and Harry, Voldemort, and Hermione as playable characters. In 2017, Warner Bros. Interactive Entertainment opened its own Harry Potter themed game design studio, by the name of Portkey Games; before releasing in 2018, developed by Jam City. All seven "Harry Potter" books have been released in unabridged audiobook versions, with Stephen Fry reading the UK editions and Jim Dale voicing the series for the American editions. "Harry Potter and the Cursed Child: Parts I and II" is a play which serves as a sequel to the books, beginning nineteen years after the events of "Harry Potter and the Deathly Hallows".