setting: in the future, somewhere on Earth
conflict: a robot is struggling to find water for his body
symbol: water is a symbol of life, robot is a symbol of high technology.
theme: you have to sacrifice something to get what you want.
Watching this, I kind of got scared, because the picture was so realistic, and it certainly was not a happy story. I think this shows what will happen in the future: no trees just buildings. At the same time, the fish showed there still is life on the planet, and the importance of its life. I was very interested at what the director wanted to show.