It takes a full five minutes for the nonmusical dialogue to start in this peppy, wholesome collegiate romp featuring Berkeley standby Dick Powell playing a successful Broadway producer quenching a dry spell by returning to his alma mater to help them stage their annual varsity show. Fred Waring, a popular bandleader and radio host, makes a rare film appearance as the anxious students’ empathetic professor, and appearing as multitalented janitors are “Buck and Bubbles,” or Ford Lee Washington and John W. Sublett, vaudeville stars whose innovations in tap effortlessly steal scenes. The effusive school spirit reaches its apex with an Oscar-nominated Berkeley salute to the top colleges, universities and academies. Hundreds of dancers miraculously form the institutional letters and insignia via a smooth reverse-motion trick, melting the allegiant hearts of the police who come to shut down the show.