After the Snowman has tried on the parents' clothes in their bedroom, as he leaves we see him in the mirror without his own hat, but in the next shot his hat has reappeared on his head. See more
This attic's full of memories for me. We spent all our summers by the seaside, and in the winter at home, by the fire, frost on the window, and snow. Snow. I was always making snowmen. One winter, I made a really big snowman. I got a scarf from him. You see, he was a real snowman. That winter brought the heaviest snow I'd ever seen. The snow fell steadily all through the night. Then when I woke up, the room was filled with light and silence, and I knew then it was to be a magical day.