Gigi is a 1958 American musical and one of my favorite movies.
The film opens with Honoré Lachaille (Maurice Chevalier) who is a members of high society in Paris. Like him his nephew Gaston (Louis Jourdan) is known as a wealthy womanizer who admits he is bored with life. In fact, the one thing Gaston truly enjoys is spending time with the precocious, carefree tomboy Gilberte, aka Gigi (Leslie Caron).
Having not scene her in a few years he realizes suddenly, that she has become a woman whose charms, wit, and personality have sent his head spinning, and comes to the conclusion that he has developed a romantic desire for Gigi.
Both Audrey Hepburn and Leslie Caron starred in the stage version of Gigi and there was a question as to which one would be picked for the movie. Audrey declined the role. The part of Honoré Lachaille was written for Chevalier who sings Oscar winning tune “Thank Heaven for Little Girls”