I can remember only this scene, the man tries to teach the woman how to go down the stairs in style. The woman always harries down with no style.
Eventually the man gives up, and few scenes laters the woman goes down the stairs slowly like a real diva. During the scene the man is always at the bottom of the stairs and the woman keeps going up and down in a hurry.
The stairs are always on the left side of the screen. Most likely 40s or 50s but cannot rule 60s out.