Audrey Hepburn a lukewarm reception for starring with Anthony Perkins in the romantic adventure "Green Mansions" (1959), in which she played Rima, a jungle girl who falls in love with a Venezuelan traveller, and "The Unforgiven" (1960), her only western film, in which she appeared opposite Burt Lancaster and Lillian Gish in a story of racism against a group of Native Americans. Hepburn next starred as New Yorker Holly Golightly, in Blake Edwards's "Breakfast at Tiffany's" (1961), a film loosely based on the Truman Capote novella of the same name. Capote disapproved of many changes that were made to sanitise the story
Moon River that it has been used as a test sample in a study on people's memories of popular songs. Comments about the lyrics have noted that they are particularly reminiscent of Mercer's youth in the Southern United States and his longing to expand his horizons. Robert Wright wrote in "The Atlantic Monthly", "This is a love sung to wanderlust. Or a romantic song in which the romantic partner is the idea of romance." An inlet near Savannah, Georgia, Johnny Mercer's hometown, was named Moon River in honor of him and this song. Mercer and Mancini wrote the song for Audrey Hepburn