Tarzan - The Broadway Musical (Original Broadway Cast)Amazon. com With its rich film catalog, Disney has a natural advantage when it comes to expanding into musical theater. But 1999's Tarzan wasn't the very best choice for a stage adaptation. Unlike, say, Beauty and the Beast, whose score was written by show tune vets, Tarzan was associated with a musical theater newbie, Phil Collins, who expanded his original score for the show, writing nine new numbers in addition to the five from the movie. But while