Dolores Del Rio and Gene Raymond may get top billing, but Fred Astaire and Ginger Rogers─in their first film together─steal the show in "Flying Down to Rio" (1933), a breezy Brazil-set musical that features Fred and Ginger dancing the "Carioca" and chorus girls dancing on the wings of airplanes "in midair." The Jerome Kern-Otto Harbach musical "Roberta" (1935) finds bandleader Astaire visiting Paris with pal Randolph Scott and finding romance with singer Rogers. Irene Dunne co-stars; score includes "Smoke Gets in Your Eyes" and "Lovely to Look At." Gum-chewing sailor Fred and dance hall hostess Ginger dance together to some classic Irving Berlin songs, including "Let Yourself Go" and "We Saw the Sea," in "Follow the Fleet" (1936), with Scott and Harriet Hillard (later Nelson). And "The Story of Vernon and Irene Castle" (1939), Astaire and Rogers' final film for RKO, is a tune-filled biodrama of the famed early 1900s stage dance duo that offers such great numbers as "Only When You're in My Arms," "Oh, You Beautiful Doll," and more. Edna May Oliver, Walter Brennan co-star. 6 2/3 hrs. total on four discs. Standard; Soundtrack: English Dolby Digital mono.