One of the great joys any retro movie lover can experience is to view a screening of a classic film with a world-class orchestra playing the musical score as live accompaniment. Many acclaimed orchestras are now doing just that and delighting movie lovers across the globe. Among the most impressive performances, not surprisingly, are those presented by the New York Philharmonic, which has a very popular film-related series that is as diversified as it is irresistible. On May 19, the the NYP presented a superb tribute to Charlie Chaplin with a screening of his 1931 masterpiece, "City Lights". Conductor Timothy Brock informed that audience that by 1931 silent film was already dead. The new era of sound was all the rage but Chaplin's clout and popularity were such that he could still find financing for his films despite his insistence that they would be shot and presented as silent movies. Clearly the beloved Little Tramp would have seemed out of place in the new era. Chaplin not only wrote, starred in and directed the film but he also composed it's marvelous score. Brock was approached by Chaplin's estate to see if he could reconstruct the original score based on Chaplin's original notes. Over the decades, the score had been bastardized into many variations performed by countless orchestras and musicians around the world. The task took over a year but the effort was worth it. A sold-out audience at David Geffen Hall at Lincoln Center applauded wildly throughout. The evening was a triumph not only for Brock and the orchestra but also for Chaplin's legacy.