Grant is his usual adequate self in the role of the married NATO official who walks into the life of a lonesome actress Anna (Bergman). The story is simple, formulaic and low-brow, but has twists enough for a comedy from 50's Hollywood.
What really raises the whole thing from total uselessness is Bergman's charisma. She is marvelously cheeky in her nicely emancipated role. The boldness of the morally less-than-traditional relationship has diluted over more progressive times, but the heartfelt acting is as current as ever.
In this film it was nice to see to more middle aged stars paired. I enjoy Cary Grant with Audrey Hepburn or Grace Kelly, but I think Ingrid Bergman is more his contemporary. Some of the best sequences had to be during the ball. Here Grant shows he still has the physical comedy ability because at this time he had fell almost completely into the debonair gentleman persona. This is not a great romantic comedy but still a respectable piece from Stanley Donen.