Mockingjay part 1

Here's a cool video I found about the making of Mockingjay part 1.

Visual-effects supervisor Charles Gibson, whose previous work includes the Pirates of the Caribbean series, says the 950 effects shots in Mockingjay Part 1 required a different approach given the way director Francis Lawrence wanted to tell the story.
“The films are played through the point of view of our main character, Katniss, and Francis wants a very real, accessible, naturalistic approach to everything,” says Gibson. “So for us in visual effects, it was finding a way to introduce more of a science fiction element in a real context.”
Realism was important, with the action in Mockingjay Part 1 veering far from the futuristic facade of the Capitol and the Hunger Games in the previous films. “The world of the games was always sort of this thing off to the side, where the rules were not really that clearly known and you could do anything you wanted,” he says. “Here, it is the real world, so all the effects had to be extensions of our real world and played as naturalistically as everything else.”
Environment work formed the bulk of the effects work for Mockingjay Part 1.   “The first film is more of a science-fiction film and more of a political film, and the second film is more of a war film. It has more action in it and more scope and more that plays outside, above ground," says Gibson.