Upside Down - Le Rocher

The Plot
The film starts with Adam telling the story of his planet, unique from other planets as it is the only one that has dual gravity. Two planets exist next to another. The gravity of the planets have 3 rules:
All matter is pulled by the gravity of the world that it comes from, and not the other.
An object's weight can be offset by matter from the opposite world (inverse matter).
After some time in contact, matter in contact with inverse matter burns.
The two worlds are separated. While the upper world (Up) is rich and prosperous, the lower (Down) is poor. Up buys cheap oil from Down and sells electricity back to Down at higher prices. Going Up or having contact with anyone from Up is strictly forbidden and can be punishable by incarceration or the death penalty.
As a child, Adam secretly climbs a mountain that gets very close to Up. They meet on the mountains and Adam uses a rope to pull Eden towards Down, and they head to the woods for a stroll.