The film “Witness for the Prosecution” was released in 1957. Directed by Billy Wilder, this American courtroom mystery adapts Agatha Christie’s 1953 stage play of the same name.
The film stars Charles Laughton as London barrister Sir Wilfrid Robarts, Tyrone Power as Leonard Vole and Marlene Dietrich as Christine Vole. The plot centres on Leonard’s trial for murdering Emily French, a wealthy widow who named him as the beneficiary of her will. Christine’s testimony creates one of the story’s central twists.
The production became famous for protecting its surprise ending. Promotional material urged audiences not to reveal it, and Wilder reportedly withheld the final pages of the script from the actors until those scenes were ready to film. That secrecy became part of the film’s identity and marketing.
The film was a major critical success, receiving six Academy Award nominations, including Best Picture, Director, Actor and Supporting Actress. Elsa Lanchester won the Golden Globe for Supporting Actress, and the American Film Institute later ranked it sixth among its top courtroom dramas.