Once upon a Time
Cary Grant is, irrefutably, the greatest movie star of all time. For  evidence, take a look atOnce Upon a Time, an airy soufflé of a movie  about a once-hot Broadway producer named Jerry Flynn (Grant), now on a cold  streak, who discovers a young orphan boy with a dancing caterpillar. Convinced  this will save his theater from being reclaimed by the bank, Flynn skillfully  turns the caterpillar into a media sensation and becomes a substitute father for  the boy--but he plans to sell the caterpillar to the highest bidder, even though  he promised the boy that he wouldn't. The surprise in the movie is not how  impossibly charming Grant is, but how willing he was to take chances; Flynn  becomes more of a villain than you'd ever expect before he sees the right path,  and Grant doesn't shy away from it. A slight movie, but a superb performance.--Bret Fetzer