The are few films more iconic than Back to the Future. At the time, 2015 would have seemed like a surreal far off age with flying cars, hoverboards, garbage fuel and robotic petrol pumps. It turns out that the movie’s writers may have been a little more visionary than even they might even have suspected. National Geographic takes an in-depth look at these technologies and how close they are now that 2015 is finally here. To find out more, click here..