Cat Ballou is a 1965 comedy Western musical film starring Jane Fonda and Lee Marvin, who won an Academy Award for Best Actor for his dual role. The story involves a woman who hires a notorious gunman to protect her father's ranch, and later to avenge his murder, but finds that the gunman is not what she expected. The supporting cast features Michael Callan, Dwayne Hickman, and singers Nat King Cole and Stubby Kaye, who together perform the movie's theme song.