If a movie required a boys choir in the 1930's, '40s or '50s, Bob Mitchell provided it. Whether it was a Catholic one for Going My Way or a Jewish one for The Jolson Story , the Mitchell Boys Choir appeared in more than 100 movies. Mitchell, who got his start as an organist accompanying silent movies in the 1920s -- and returned to that line of work at the Silent Movie Theater in Los Angeles 60 years later -- was also the organist for the Los Angeles Dodgers and the Los Angeles Angels during the early years of Dodger Stadium. He died on July 4 at the age of 96, the Los Angeles Times reported Thursday.