Nearly 20 years after it opened on Broadway, the E.Y. Harburg/Fred Saidy musical Finian's Rainbow was committed to film. Set in the mythical southern state of Missitucky, the story involves the whimsical Irishman Finian (Fred Astaire) and his daughter Sharon (Petula Clark) arriving in the community carrying a crock of gold, which they've stolen in the Auld Sod from Ogg the Lepr...