크레딧 출연 무함마드 알리 Self George Foreman Self Joe Frazier Self 버트 랭커스터 Narrator 스텝 William Greaves Production 勝新太郎 Production Ralph J. Tangney Production Richie Havens Sound Joseph Consentino Crew Stevan Larner Crew Terence Macartney-Filgate Crew James Mannas Crew William Greaves Editing Peggy Stulberg Editing William Greaves Directing Rick Baxter Directing