Bradley Cooper’s “Maestro,” a high-wire act of a biopic, leaps constantly between on stage and off, flying through Leonard Bernstein’s very public life as a conductor while diving into his more private marriage to Felicia Montealegre. How each side of Bernstein’s existence interacts with the other is the tension and harmony of “Maestro.” Which is authentic? Which a performance?

Resolving those dichotomies is, thankfully, not the aim of Cooper’s admirably ambitious if performative drama about the musical conscience of 20th century America. Bernstein’s polymorphous life was spread between his family life and a string of male lovers, just as it was between conducting and the solitary toil of composing. “Maestro” resists neat conclusions about any facet of an expansively contradictory life.