Multi-award winning director Frank Budgen and a TWBA creative team lead by Trevor Beattie worked with the Mill's Barnsley, who also went on the six-day shoot in Brazil. Five cameras filmed a crowd of over 500 extras, choreographed to run through the streets of Rio, climb buildings and to end piled up into a mountain of people. Stuntmen and acrobats were filmed from a helicopter as they ran up a 20-ft cone on top of Brazil's highest skyscraper. Most backgrounds and buildings were shot in-camera. In post production the Mill added a combination of crowd replication, set extension and CG work for the extreme wide shots.

Even 500 extras a day was not enough. Mill 3D artist Jordi Bares used Massive software to create thousands of extra digital characters, climbing and running, each with a brain to determine their actions. For the biggest shot Jordi created 146,000 digital people with unique vision, sound and touch-based artificial intelligence to make them behave realistically.