Watch The Girl Who Knew Too Much

For other uses, see The Girl Who Knew Too Much. The Girl Who Knew Too Much is a 1969 film starring Adam West as Johnny Cain, a nightclub owner and former freelance adventurer who is forced out of retirement when a crime syndicate boss is murdered in his nightclub and investigations lead into unexpected areas. The film co-stars Nancy Kwan, Nehemiah Persoff, Robert Alda, Patricia Smith, David Brian, and noted jazz musician Buddy Greco as nightclub entertainer Albert "Lucky" Jones. Its melodramatic promotional tagline was: "You have to be crazy or in love to take on the syndicate!" The film was intended to be a vehicle for Adam West to escape his Batman stereotype by playing a cynical, hard-edged tough guy. The movie's dialogue is typified by a scene between West's Cain and the manipulative Grinaldi played by Smith: Mrs. Grinaldi: "And what do you do for a living, Mr. Cain?" Cain: "I kill people, Mrs. Grinaldi." The Girl Who Knew Too Much was not a box office success in theatrical release, but became a staple of late-night showings on WCBS-TV and other television stations in the early 1970s. Despite this exposure, it has never been released on VHS or DVD, and thus is in danger of becoming a lost film.