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"The first scenes featured in the trailer, depicting a young girl witnessing a Kaiju attack, are not the first scenes you’ll see in "Pacific Rim.” The sequence actually takes place in the middle of the film, a flashback that reveals the history of co-lead Mako Mori (played by Rinko Kikuchi), who lost everything to the Kaiju.

"This is how she decided to fight Kaijus, and what happened to her as a kid," del Toro explains."