The three main characters, Harry Potter, Ron Weasley, and Hermione Granger, were perfectly cast with Daniel Radcliffe, Rupert Grint, and Emma Watson, respectively. Audiences got to see these three kids grow up as people and actors over the years, and Warner Bros. executives were able to keep them and the rest of the all-star cast together until the final film in 2011.
The seven Harry Potter novels have sold more than 450 million copies and are the best-selling book series in history. With such a rabid and loyal fan base, it was a foregone conclusion that Hollywood would come knocking on author J.K. Rowling’s door. In 1998, Warner Bros. purchased the rights to the first two novels for more than $1 million, and director Chris Columbus had the pleasure— and challenge—of casting all the various characters who would entertain audiences for the next 10 years.