I had watched Rear Window shortly before watching this movie with my parents, and we all agreed that Grace Kelly may be gorgeous to look at, but if we had to choose between them, Katharine Hepburn's spunkiness would win out every time. She's fantastic in a movie full of fantastic actors. Cary Grant is, as always, well . . . how do you describe him other than he's Cary Grant?!? He doesn't need a description, Cary Grant is the description. Jimmy Stewart (I can't call him James, it sounds wrong.) is hilarious, although I have to say, he (and everyone else) was upstaged by the little sister pretty much every time she came on the screen.