This is Cary Grant's breakout role in Hollywood. And co-star Irene Dunne establishes herself as a screwball star too. Together they are dynamite as a married couple who divorce and seek new partners but never re-find that elusive chemistry. They drift back together, at first over the custody of the dog, but really for the elegance and wit, and then, for the sex.
Director Leo McCarey gets this superficial set-up to sparkle. Some of the situations and plot complications are inspired. Apparently he wrote most of the final script and gets wonderful performances too, largely through improvisation. And the innuendo is pretty risqué. It is amazing it got past the Hays Office... Maybe because it is so good!
Grant and Dunne are one of the great screwball partnerships. And Ralph Bellamy as Irene's rich, unsophisticated suitor, is outstanding too. The sparring cosmopolitans are so aloof they look down on anyone who isn't a New York sophisticate. But the film gets away with it because of the charm of the stars.
Grant rousting the blundering Bellamy to the mortification his ex-wife is hilarious, which Dunne matches in a scene where she pretends to be Cary's dipso sister to discredit him before his wealthy would-be in-laws. It never falters. Thanks to the all time great triangle of leads, this remains a consistent and compelling joy.
Considering that all the blame lies with the husband not trusting his wife, it is an unbalanced comedy as he continues to torment her and she only gets a tiny bit of revenge; the later film My Favorite Wife covers a similar plot with the same stars in a much pleasanter and more satisfying way.