The patriarch of the Corleone crime family is hospitalised after an attempt on his life and entrusts control of his business to his three sons - the violent and unpredictable Sonny, the weak-willed Fredo, and Michael, the youngest brother, who reluctantly takes up the reins but proves to be the most ruthless of them all. Francis Ford Coppola's gangster drama, starring Marlon Brando, Al Pacino, James Caan, John Cazale, Talia Shire, Robert Duvall and Diane Keaton.