"You could be a perfectly wonderful dancer if you wanted to," Irene tells the vaudeville second banana who will someday be her husband. They were even more wonderful together. Vernon and Irene Castle became King and Queen of the Ballroom, creating the Castle Walk, Maxie, Texas Tommy and other sensations. The world followed their every move. Fred Astaire and Ginger Rogers close their fabulous run of '30s films by portraying the popular dancers whose influence extended to pre-World War I lifestyles (Castle candies, shoes and beauty supplies were just a few of the duo's product lines). Period tunes and the stars' delightful stepping of Castle dances accent this film of goodbyes to a fond yesteryear and to the Astaire/Rogers RKO partnership. Apart, Fred and Ginger would make fine movies. But they were even more wonderful together.