Act as a professional YouTube content creator with 5+ years of experience in AI-generated video production. Create a detailed script for a video titled 'How to Create Underground City Videos with AI.' The script should include: [1] an engaging hook to grab attention, [2] a step-by-step tutorial on using [specific AI tools like MidJourney or RunwayML] to design and animate underground cityscapes, [3] tips for adding realistic lighting and textures to enhance the [futuristic or dystopian] vibe, and [4] a call-to-action encouraging viewers to like, subscribe, and share their own creations in the comments. Keep the tone energetic and informative, with clear transitions between sections. Aim for a video length of [8-10 minutes].