It’s a good time to be an Alien fan. Audiences will soon have multiple opportunities to see their favorite multi-mouthed, acid-bleeding killing machine in action once more. Ridley Scott’s 1979 hybrid of merciless monster movie and grungy futuristic sci-fi returns to theaters today, ready to wage war on nerves and stomachs again. (“In space,” the advertisements promised, “no one can hear you scream.” But in movie theaters? There, the sound carries.