 Several works, such as "The Confidential Agent", "The Quiet American", "Our Man in Havana", "The Human Factor", and his screenplay for "The Third Man", also show Greene's avid interest in the workings and intrigues of international politics and espionage.Greene was born in Berkhamsted in Hertfordshire into a large, influential family that included the owners of the Greene King Brewery.He boarded at Berkhamsted School in Hertfordshire, where his father taught and became headmaster.