If you’ve never seen Alien, Blade Runner, The Road Warrior, or RoboCop, you may think the scrap-metal action thriller Hardware is vaguely original. For a while, the movie offers low-budget variations on the usual retro-future jokes (action-porn TV shows, characters who dress like punked-out auto mechanics). Then the hero brings home the shattered carcass of an old robot for use in one of his girlfriend’s sculptures, and the robot reassembles itself and spends the rest of the film terrorizing the girlfriend. Had the killer droid been conceived as a charismatic demon, Hardware might have delivered some B-movie kicks. As it is, there’s nothing particularly scary or awesome about this low-tech walking junk pile. It’s as if someone had remade Alien with the monster played by a rusty erector set. D+