Love in the Afternoon (1957)

Set in Paris, France, Chevalier plays private detective Claude Chavasse who is hired to follow a wife suspected of cheating on her husband with American millionaire playboy Frank Flannagan. When the husband figures out that his suspicions are true, he tells Claude that he plans to kill Flannagan. Ariane, Claude's daughter overhears and goes to the hotel that Frank is staying at to warn him. She pretends to be his girlfriend to convince the husband that it's not his wife which works like a charm. Not telling him her name, Ariane pretends to be a socialite that has had many past boyfriends. Frank becomes fascinated by her and wants to see her again at the hotel in the afternoon. So they spend time together and she falls in love with him. When he goes back to America she follows all news on him. The following year she sees him when she's at the opera but he doesn't recognize her. She continues to play the part of the socialite with many past lovers. Frank, feeling jealous about it and wanting to know more about her, hires Claude to investigate. When Claude realizes Frank is talking about his daughter, he tells him that she has never been in love, and to not break her heart. Despite Gary Cooper's miscasting, he really is quite wonderful in this picture; and of course Audrey is charming and delightful as always. A lovely romantic comedy by the great Billy Wilder. Starring Gary Cooper, Audrey Hepburn, Maurice Chevalier 8/10