This has been a big week for trailers advertising 2013's event films, and it looks like the winner of the trailer way is 'Pacific Rim,' which has giant robots fighting monsters. Now director Guillermo del Toro has provided a commentary track for the trailer.

If you haven't watched the trailer yet, you should before you watch this as del Toro gets into the nuts and bolts of the story, and there are spoilers. If you don't know what it's about, here's the synopsis:

When legions of monstrous creatures, known as Kaiju, started rising from the sea, a war began that would take millions of lives and consume humanity’s resources for years on end. To combat the giant Kaiju, a special type of weapon was devised: massive robots, called Jaegers, which are controlled simultaneously by two pilots whose minds are locked in a neural bridge. But even the Jaegers are proving nearly defenseless in the face of the relentless Kaiju. On the verge of defeat, the forces defending mankind have no choice but to turn to two unlikely heroes — a washed up former pilot (Charlie Hunnam) and an untested trainee (Rinko Kikuchi) — who are teamed to drive a legendary but seemingly obsolete Jaeger from the past. Together, they stand as mankind’s last hope against the mounting apocalypse.

Here's that commentary. 'Pacific Rim' opens July 13, 2013

UPDATE: MTV's video player is currently experiencing some technical difficulties with regards to embedding. However, you can click over to MTV to watch the 'Pacific Rim' trailer with commentary.