Firepower is a 1974 film starring Sophia Loren, James Coburn, O.J. Simpson, Eli Wallach and Victor Mature. Sophia Loren (born September 20, 1934) is a motion picture and stage, Academy Award-winning actress, widely considered to be the most popular Italian performer. ... James Coburn in Sam Peckinpahs Cross of Iron (1977). ... Orenthal James Simpson (born July 9, 1947), commonly known as O. J. Simpson and also just by his initials O.J. and his nickname The Juice, is a retired American football player who achieved stardom at the collegiate and professional levels. ... Eli Herschel Wallach (born December 7, 1915) is an American film, TV and stage actor. ... Victor Mature (29 January 1913 - 4 August 1999), an American film actor, was born in Louisville, Kentucky to a Tyrolean father, Marcellus George Mature, a cutler, and a Swiss-American mother, Clara Mature. ...