Okay, so...there are two planets with completely opposite gravitational fields, close enough to be connected by skyscrapers. Your high-school science teacher is doing a facepalm right now.
Of course it's a parable. Something about topsy-turvy priorities favoring the rich, two people from "different worlds," got it. Because love actually isn't stronger than gravity. Love only makes you think your insides are being crushed.
The visuals, however, are extremely pretty, and for once, I wish something were in Imax that isn't. Trailer after the jump.