hello tv, i need help finding this indie sci fi movie which,

File: 2-earths.jpg (9KB, 318x159px) Image search: [Google]

9KB, 318x159px

hello tv, i need help finding this indie sci fi movie which, in my opinion was very good and worth a rewatch, this is what i remember about it:

its set in an alternate universe? (i dont exactly remember if its like this but its not really important) where instead of 1 earth there are 2, and they are in very close proximity to each other, so close in fact that if 2 people on each planet climb to the top of a mountain, they could have a conversation. that is what 2 people did in the beginning scene of the movie, a man and a woman, who seem to be in love, i should mention that it is impossible from 1 being of a planet to go to the other planet and stay on there, they always seem to be gravitationally drawn to the planet they were born on(i know pretty shitty sci fi explanation) the man on his planet ignores this, and tosses a rope to the woman, and she beings to climb, but apparently interplanetary relationships seem to be frowned upon in at least the "top planet" (i should mention that one planet is stacked on the other and this creates an interplanetary caste system) and the authorities are dispatched, this causes the man to drop the rope and the woman, who receives a blow to the head.

this is all that i remember from the movie, aside from their being this special metal that nullifies the gravity rule of the movie. will you help me find this movie /tv/?