Love Happy is a 1949 American musical comedy film, released by United Artists, directed by David Miller, starring the Marx Brothers. It was the 15th including Humor Risk and last film starring feature for the Marx Brothers.
Private detective Sam Grunion Groucho Marx has been searching for the extremely valuable Royal Romanoff diamonds for eleven years, and his investigation leads him to a troupe of struggling performers, led by Mike Johnson Paul Valentine, who are trying to put on a musical revue called Love Happy.Grunion notes that the impoverished young dancers would starve were it not for the sweet, silent Harpo Harpo Marx, at Herbert amp Herbert, a gourmet food shop that also trafficks in stolen diamonds. Harpo kindly helps ladies with their shopping bags, all the while pilfering their groceries and stuffing them in the pockets of his long trench coat. When the elegant Madame Egelichi Ilona Massey arrives, store manager Lefty Throckmorton Melville Cooper tells her that the sardines have come in. Harpo sneaks into the basement and watches as Lefty lovingly unpacks a sardine can marked with a Maltese cross, and swipes the can from Leftys pocket, replacing it with an unmarked one. Madame Egelichi, who has gone through eight husbands in three months in her quest for the Romanoff diamonds, is furious when Lefty produces the wrong can. When Lefty remembers seeing Harpo in the basement, she orders him to call the police and offer a 1,000 reward for his capture. ........
Source: Wikipedia