This short movie is really difficult to write about this movie! (・'・;)
I think this movie's "lost thing" is a thing that was not useful for people of that time.
So for most people, this movie's "lost thing" might be seen as a garbage.
But, boy found the "lost thing" at beach.
I think that is because boy still had a child's heart in himself.
He didn't have to think about it's usefulness.
You can say that from his hobby. He liked to collect caps of bin!
So, maybe the people who made this film wanted to tell the people not to forget child's heart, I guess.
It's important to look the things in a way of efficiency, but it's boring to think like that all the time.
P.S.
I liked the music of this film!
