David Lean's adaptation of Dickens' novel centres on the story of orphaned Pip, from his unnerving encounter with escaped convict Magwitch on the bleak Essex marshes to his becoming a gentleman through a mysterious benefactor. With Martita Hunt as the tragic Miss Havisham, Alec Guinness - in his first major screen role - as Herbert Pocket and Jean Simmons, then Valerie Hobson, as the heart-breaking Estella.