Brother and sister dance team Tom and Ellen Bowen (Fred Astaire and Jane Powell) are on their way to England when Ellen strikes up a shipboard romance with Lord John Brindale (Peter Lawford). Meanwhile, confirmed bachelor Tom grows smitten with dancer Anne Ashmond (Sarah Churchill). Will romance break up the act? This also happens to be the movie where Astaire dances on the ceiling, an act accomplished by building a set inside a revolving barrel, or "squirrel cage," and mounting the cameraman to an ironing board which could be rotated along with the room.