Marilyn Monroe in The Marx Brothers Love Happy 1949 #shorts #grouchomarx #comedy #slapstick The Marx Brothers help young Broadway hopefuls while thwarting diamond thieves. Credits: United Artists 1949 Director: David Miller Producers: Lester Cowan, Mary Pickford Writers: Frank Tashlin, Mac Benoff, Harpo Marx Cast: The Marx Brothers, Ilona Massey, Vera-Ellen, Marion Hutton, Raymond Burr, Paul Valentine, Eric Blore, Bruce Gordon, Marilyn Monroe