The trilogy was supposed to have three stories with the final film, "Cloverleaf" to show how corrupt the time before freeways in Los Angeles was. With the problems with the director of the first two movies, Roman Polanski and his conviction of statutory rape and the box office of The Two Jakes, Cloverleaf was never used. The writers of Who Framed Roger Rabbit , Jeffery Pierce and Peter S. Seaman, who loved Chinatown, found the story and re-worked it for Who Framed Roger Rabbit. Aside from the cartoon characters it is virtually the same story.

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