Lost underwater kingdoms. Dystopian future cities. Galaxies far, far away. Some worlds invite us with warmth and magic and wonder. Others warn of danger around every corner. World-building is a crucial component of filmmaking, as it creates entire cinematic universes within the context of a film. On today's Supercut, we discuss the worlds we love, the ones that we're in awe of, as well as the ones we never want to find ourselves in.