Guillermo del Toro's use of physical sets grounds the Pacific Rim storyline of giant robots versus monsters in reality, although Charlie Hunnam and Rinko Kikuchi weren't quite expecting to have gallons of water dumped on them while filming!
Charlie Day and Ron Perlman give details on their casting and characters.
Director Guillermo del Toro discusses the scope of the film and how the forces of nature contend with each other.