In his first pairing with co-writer I.A.L. Diamond, Billy Wilder plays tribute to the effervescent romantic comedies of Ernst Lubitsch with this May-December romance starring Audrey Hepburn and Gary Cooper. Hepburn plays Ariane Chavasse, a coltish young conservatory cellist who yearns for a more mature understanding of life. Overhearing a client of her private detective father (frequent Lubitsch collaborator Maurice Chevalier) threatening to murder American playboy Frank Flannagan (Cooper), Ariane decides to warn Frank of the danger herself. Sparks fly when the two meet up, and the worldly Frank finds he is no match for the 'innocent' Ariane. But Ariane's gumshoe pop is still on the case... And the fizz on display in this Dom Perignon of a production, from Diamond and Wilder's witty banter, to Chevalier's scene-stealing to production designer Alexandre Trauner skillful weaving of the real and the romantic to Franz Waxman's soaring score - all of which have never been more easily seen than in this Cristal-clear 1080p HD presentation.