“Monty Python” alum Eric Idle addressed an apparent fan misconception on Friday: that he and the rest of the legendary British comedy troupe’s members aren’t swimming in cash from their productions.

In a new book, “The Spamalot Diaries,” the comedian-actor delivers a spot-on account of the making of his hit show. “England, 932 A.D., a Kingdom divided …” If you’ve seen the musical “Spamalot” — and ...