Silent Running

In the not-so-distant future, Earth is barren of all flora and fauna, with what remains of the planet’s former ecosystems preserved aboard a fleet of greenhouses orbiting in space. When the crews are ordered to destroy the remaining specimens, one botanist, Freeman Lowell (Bruce Dern), rebels and flees towards Saturn in a desperate bid to preserve his own little piece of Earth that was, accompanied only by the ship’s three service robots. (Arrow Films)