Morton DaCosta: Morton DaCosta. Director: The Music Man. Philadelphia-born Morton DaCosta started his career as a stage actor in 1942, and by 1950 had become a respected stage director, both in stock theater and on Broadway. His short film career consisted of a pair of successful adaptations of Broadway successes, ("The Music Man" and "Auntie Mame") and one less successful film ("Island of Love"), after which he returned to his first love,...