Ginger Rogers Castle", but the serious plot and tragic ending resulted in the worst box-office receipts of any of their films. This was driven not by diminished popularity, but by the hard 1930s economic reality. The production costs of musicals, always significantly more costly than regular features, continued to increase at a much faster rate than admissions. Both before and immediately after her dancing and acting partnership with Fred Astaire ended, Rogers starred in a number of successful nonmusical films. "Stage Door" (1937) demonstrated her dramatic capacity, as the loquacious yet vulnerable girl next door, a tough-minded, theatrical hopeful, opposite Katharine Hepburn.
Fred Astaire and Ginger Rogers for Astaire and Rogers, "Shall We Dance", which co-starred Edward Everett Horton. Although the film was RKO's biggest film of the year with worldwide rentals of $2.2 million, it did not perform as well as expected by the studio. "Shall We Dance" had the first Hollywood score by the brothers George and Ira Gershwin, and included the song "They Can't Take That Away from Me". Although Astaire and Rogers would go on to make two more films together for RKO, the film's comparative disappointment in the box office was the beginning of the end for their partnership. After an unusually