La fantarca

In the year 2250 the universe is divided into two: on the one hand the world of the rectangle and on the other the world of the triangle. During a deportation on Saturn, the two give life to a last disastrous battle, which will lead to the destruction of the world. The "Fantarca" spaceship remains isolated in space and its surviving crew is faced with the difficult choice of whether to continue the journey towards Saturn, or return to Earth and build a new civilization there. (groups.google)