One rule that must be adhered to was a strictly British and Irish cast policy, unless the role required otherwise. Heyman was very impressed by Rowling's work, which led to Rowling selling him the film rights for four books in 1999. He put it on the low priority shelf, thinking the title was 'rubbish.' However, when a secretary found and read it, she gave it to Heyman with a positive review and he then read it. In 1997, David Heyman received a copy of Harry Potter and the Philosopher's Stone. 8.2.1 Harry Potter Wizard's Collection bonus disc.8.2 Special features for hours of entertainment.8.1 Films included in collection – All on Blu-ray, DVD and UltraViolet digital copy.