Probably the most insane fight sequence of Pacific Rim was when a Jaeger fought a Kaiju in the streets of Hong Kong. The entire city was destroyed, glass shards flew everywhere, neon lights were exploding, streets were being crushed, shipping containers somehow were involved and the whole battle was just beyond epic. Here's how ILM made it happen. It involves a lot of computers, yes, but also a miniature scale set filled with 3D printed goodies.