After Penelope (1966), Natalie Wood bought herself out of her Warner Bros. contract for $175,000 and fired her staff of agents, managers and lawyers. She didn't make another film for three years.
The copy of Life magazine Dr. Gregory Mannix has in his office is the May 6, 1966 issue with Jacqueline Kennedy riding a white horse in Spain on the cover.
Sir Dirk Bogarde turned down the role ultimately played by Ian Bannen. Bogarde opted instead to star in Joseph Losey's Accident (1967) written by Harold Pinter, the last of his five collaborations with Losey.
The $60,000 Penelope steals from the bank would equate to close to half a million in 2020 (updated).