Bright Future is about a plot to populate the sewers of Tokyo with a glowing, poisonous jellyfish. So far, so good. There aren't too many movies about plots to populate the sewers of Tokyo with glowing, poisonous jellyfish that I know about. Although the movie has much to commend it, it is ultimately frustrating because characters are constantly doing things not because they make sense but because the filmmaker wants them to in order to advance the plot. Also, the movie has no real ending; it just
.ends.
On the one hand, you might say that the movie doesn't have to make sense because it follows a dream logic and dreams don't always make sense. However, the best movies that follow a dream logic, such as Bunuel's The Exterminating Angel, have an internal consistency. Actions make sense within the context of the movie. Also, The Exterminating Angel has one of the best endings in all of cinema.
I liked the themes of Bright Future: loneliness, alienation, lack of connection between the generations. I also liked the poisonous jellyfish as a metaphor for disaffected, violent teenagers and 20-somethings. However, I had the feeling that the filmmaker wrote himself into a corner and didn't know how to get out of it. Japanese novelist Haruki Murakami does this with his novels. He starts a novel not knowing where it's going but then eventually has to end it, which he almost always does in an unsatisfying manner.
Nevertheless, I keep reading Murakami novels and I'm going to seek out other films by Kiyoshi Kurosawa. Maybe some day all the ingredients will fall into place and he'll make a masterpiece.