Douglas Trumbull’s 1972 film was made well before the space-opera boom, but the seeds of George Lucas’s entire career are already apparent in the three cute robots (Huey, Dewey, and Louie) created as companions for space-station engineer Bruce Dern. Despite the triteness of the theme (Dern is in charge of maintaining the last remnants of the earth’s vegetation), the film is enjoyable for its intimacy, seriousness, and intelligent character work, virtues not perpetuated by the subsequent new wave. With Cliff Potts, Ron Rifkin, and Jesse Vint.