Honeymoon (1947)

Pretty but scatterbrained Barbara Olmstead arrives in Mexico City to marry her soldier fiance, learns he's been delayed, and runs off to find a place to stay. Meanwhile, fiance Phil arrives after all, just misses Barbara, and goes searching for her. As further complications ensue, American consul David Flanner (who has his own impatient fiancee) is caught in the middle and driven frantic.