If you are used to the slick production fast movement of a Marvel movie, skip this one.
It is much more cerebral than most people can handle.
There are a multitude of themes.
The one that most people seems to miss - the lack of water - is only truly understood in the last bit 20 minutes of the movement.
Spoiler:
The main character has a power she couldn't control and it almost cost her baby its life....due to drowning.....so, she suppressed that ability.....
End of Spoiler:
I would recommend this just because it is about relationships and figuring out who you are in a world of the ordinary and mundane.