Review at a glance S ay what you like about Bradley Cooper, the man sure likes to set himself a challenge. After directing and starring in A Star Is Born, in which he played the guitar and sang, this time Cooper directs, produces, co-writes and stars in a film about another musician – and not a fictitious character this time, but Leonard Bernstein himself, one of the most revered conductors and composers of the late 20th century. And he does so with reverence, intellect and talent. However, the title Maestro is slightly misleading. This film is not just about Leonard...