Metropolis You might not know this, but the secret to a good sci-fi movie is world-building. The plot is almost secondary. What people really want to see is how the future is being represented (or the past, for that matter). Don’t believe me? Watch Blade Runner and think about what happens. A character is given a job, and it takes him 2 hours to do it. What makes Blade Runner truly great is the world in which...