At the end of the movie, when Susan leaves the library and is walking down the street, she doesn't have her dog with her. But when she approaches the market, she has her dog with her and chains him up outside the market.
The tea kettle that Susan Selky uses while waiting for Alex to come home is not a whistling type. There is no whistle attachment as she poured the water without removing anything from the spout. Whistling was only a sound effect.