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Sidney Lumet, born on June 25, 1924, was an acclaimed American film director. His notable works include "12 Angry Men," "Serpico," "Dog Day Afternoon," and "Network," which showcase his talent for socially conscious storytelling and exploration of complex characters. Lumet's career in filmmaking spanned several decades, and his contributions to the industry have left a lasting impact, earning him recognition as one of the great auteurs of American cinema.