According to David Michôd, the director and cowriter of the film, "Christy Martin put female boxing on the map in the mid-'90s. She was the first woman fighter on the cover of Sports Illustrated and fought on the Mike Tyson undercard. Her husband was also her trainer, and then, after her success, he tried to murder her. Our film is a wild mix of inspiring underdog sports-world story and personal saga."
