One of the most beloved family films transfered to the stage with the appearance of the hit Broadway musical Chitty Chitty Bang Bang, now set to play at the Academy of Music (April 7-12). The recipient of five Tony Award nominations, the music and lyrics are penned by the Sherman Brothers, who include among their credits the delightful Mary Poppins. A perfect theater outing for the entire family, the score includes such favorites as "Truly Scrumptious" and the Oscar nominated title song "Chitty Chitty Bang Bang."