River (2011 film) character of the film is played by actress Misako Renbutsu. Renbutsu had previously starred in the 2007 film "Tenkōsei: Sayonara Anata". In addition, the film also stars Mami Nakamura, Anta Odaka, Toshie Negishi, Nahami, Tomorowo Taguchi, Tokio Emoto, Yukichi Kobayashi and Yuto Kobayashi. The theme song for the film "River" is the song "Moon River". This song was originally used in the 1961 American film "Breakfast at Tiffany's", which starred actress Audrey Hepburn. This song was used because it "reflects the atmosphere of Kanda River". "River" will make its debut at the 12th Tokyo Filmex as one of the festival's
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