Maestro Parent Guide A triumph of music and love. Release date December 20, 2023 Netflix: An exploration of the life of conductor Leonard Bernstein, told through his relationship with his wife Felicia Montealegre Cohn Bernstein. Why is Maestro rated R? The MPA rated Maestro R for some language and drug use. Run Time: 129 minutes Watch the trailer for Maestro News About "Maestro" Cast and Crew Maestro is directed by Bradley Cooper and stars Bradley Cooper, Carey Mulligan, Matt Bomer.