Before teaming up for The Philadelphia Story, Grant, Hepburn, and Cukor collaborated on this stellar romantic comedy. Grant upends Hepburn’s highfalutin’ upper-crust family, just as they are about to celebrate a posh, dignified New Year’s with the announcement of his engagement to Hepburn’s sister. Hilarity and late-Depression-era escapism ensue, with a little bit of vaudevillian acrobatics from Grant to boot.