1972 Silent Running Bruce Dern saves the environment with these cute robots in this Sci-Fi Drama

Silent Running is a 1972 American ecological-themed science fiction film. It is the directorial debut of Douglas Trumbull, and stars Bruce Dern, Cliff Potts, Ron Rifkin, and Jesse Vint. 1972 Silent Running Bruce Dern saves the environment with these cute robots in this Sci-Fi Drama
In the future, all forests on Earth have become extinct from careless environmental exploitation. As many specimens as possible have been preserved in a series of enormous greenhouse-like geodesic domes serving as closed ecological systems attached to large cargo spaceships, forming part of a fleet of eight "American Airlines Space Freighters", stationed outside the orbit of Saturn.