This movie is a time capsule!
As someone noted in their review, this movie is a time capsule from 1936, both in terms of elements of the film, and in observing the props and objects that the characters moved about.
Remember that "advanced" stove? It looked like an old cabinet! How about the cars? The phones?
And, in terms of filmmaking, look how heavy handed the music was. It almost seemed like audiences were much more innocent then...they accepted a straight-forward story and the music without cynicism.
Also a time capsule in terms of Cary Grant's career. You see flashes of the Cary Grant we all know, yet he's still learning his craft!