While 'The Godfather' is famous for Marlon Brando’s Best Actor win, the film achieved a rare feat in the Best Supporting Actor category in 1973. It earned three separate nominations in that single category: Al Pacino, James Caan, and Robert Duvall were all nominated for their roles as Michael, Sonny, and Tom Hagen. Ultimately, none of them won; the award went to Joel Grey for 'Cabaret.' Pacino famously boycotted the ceremony because he felt he should have been nominated for Best Actor alongside Brando, given that Michael Corleone had more screen time than Vito. Despite the lack of a win in that specific category, the triple nomination served as a testament to the incredible ensemble cast assembled by Francis Ford Coppola, marking one of the few times a single film has so thoroughly dominated a supporting category.