movie:

The Golden Globe and Emmy-winning actor Alan Rickman was taken aside by Potter author JK Rowling and told Snape’s arc to the end of the series years before the final book in the series, “The Deathly Hallows,” was released. That enabled him to have a certain insight to the character that not even anyone on set could match.As a result he often argued with directors based on knowing something they didn’t. Follow movie for more movie facts and trivia!