Kin-dza-dza!

Two Soviet humans previously unknown to each other are transported to the planet Pluke in the Kin-dza-da galaxy due to a chance encounter with an alien teleportation device. They must come to grips with a language barrier and Plukian social norms (not to mention the laws of space and time) if they ever hope to return to Earth.

Tags: cosmos, post-apocalyptic future, soviet union