My copy is the Penguin film tie-in, secondhand, cover soft at the corners, Ben Kingsley’s face floating over a block of hot orange. Usually a tie-in edition is a warning sign. It means the book is being sold on the back of a film, and the film is generally the reason nobody bothers with the book afterwards. This one is the exception. The novel is very good and the film is very good, and they are good in different enough ways that neither spoils the other.