Superior, sublimely entertaining treatment of Agatha Christie's 1953 play stars Charles Laughton as an elderly London barrister who ignores his physician's orders and defends an unemployed man (Tyrone Power, in his final screen role) accused of killing a wealthy widow. Marlene Dietrich is the man's wife, who becomes a "witness for the prosecution." Elsa Lanchester, John Williams co-star in this classic mystery directed by Billy Wilder. 104 min. Widescreen; Soundtrack: English.