I have loved this film since I first saw it some 40 years ago. I still do. And this despite my never having seen the appeal of the suave Cary Grant - definitely not a romantic hero to me. But in the right comedy he makes me laugh more than almost anyone else. "The right comedy" is 1930's or 40's with a strong female opponent. The best of all is "Bringing Up Baby", also directed by Howard Hawks and also at one point sticking Cary Grant in women's clothing. This is a strong runner-up.
Ann Sheridan gives as good as she gets and seems to be having terrific fun, especially on the long motor-cycle journey through post-war Germany (lots for the social historian). Cary Grant gives his usual performance in this sort of screwball affair, but what else would you want? In the final third, after the marriage, when they are unable to find anywhere to sleep he is superb. Small parts are wonderfully taken.
Pure joy, and makes recent Hollywood comedies seem vapid and bland (and where are the strong women?)