Putting your movie underground is the easy way to give half of your audience a taste of big city life. The other half already lives in a city, but if the film is set in their city, it will give them a firm sense of realism. Try to think of a great movie scene that happened in the subway. It's hard to remember one right off the top of your head (besides the one pictured), but you'll enjoy tweaking your memory with film clips of five ranked classic subways scenes you can watch right now at TVOM. You'll probably agree about number one.