MAESTRO reviewed by GREG KING Director: Bradley Cooper Stars: Carey Mulligan, Bradley Cooper, Matt Bomer, Sarah Silverman, Maya Hawke, Michael Urie, Brian Klugman, Sam Nivola. Leonard Bernstein was, arguably, the best-known American composer and conductor of the twentieth century. His achievements included 7 Emmy Awards, 2 Tonys, 16 Grammys, and 1 Oscar nomination. He is best known for composing works for …