Movie Description
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. It was the final film of director Francis D. Lyon and United Pictures Corporation.
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.