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 fandom set up with 3D virtual chatrooms and avatars where fans can socially interact with each other in Pictionary and Harry Potter Trivial games or participate in discussion groups about Harry Potter or Film media or perform plays as a theater group to other fans as audience. They hold special community event such as Harry Potters Birthday or Halloween and have seasonal house competitions. Fans are able to create their own avatars, collect or be rewarded coins to purchase furniture items for their own "clubhouse". However, the website emphasizes more social interaction between fans' avatars to stimulate the Hogwarts student experience.