I consider it overrated. Sure, it's pretty great in the sense that it's completely open to interpretation like yume nikki, but people exaggerate over how… "amazing" it is.
It's my fave animated film, truly gorgeous.
Definitely the closest we'll ever get to animated Yume Nikki.
I watched this movie for the first time yesterday (I admit, I remembered wanting to watch it after seeing this thread) and I quite enjoyed it.
The silence and little dialogue really captured, seeing the world as it was potrayed in it's abandonment (as well as beauty) is haunting.
The whole town has incredible architecture and other artistic decorations (the fountain, the cathedral,…), I believe this should show how earthly and materialistic (far from god) the population was. The way they acted, hunting those invisible fish, looking all the same, meant how in time of need they claim to faith and give up identity and become one of the group grasping for the unreachable they all image to see. There wasn't anything in the movie but maybe there was some sort of prophecy given to the humans like how God warned the people in the Bible. The man remembers the quote even though he says he has no memories.
It's definitely one of my favorite movies!