With a bow to my frequent Non-Billable Hours page-mate Rebecca Ford, today’s column looks at the unique intersection of live performance with cinema arts and the upcoming opportunities for readers to experience the very best of music, theater and film.I am certain you all know the genius of Leonard Bernstein and John Williams as great writers of dramatic motion picture scores. Perhaps many of you have attended concerts where selections of their works have been played by a symphony orchestra. But have you ever heard …