Watch the First Trailer for Pacific Rim Guillermo del Toro's giant robots vs. giant monsters epic!

Here's your first look at director Guillermo del Toro's giant robots vs. giant monsters sci-fi epic Pacific Rim, starring Idris Elba, Charlie Hunnam, Charlie Day, Rinko Kikuchi, Diego Klattenhoff and Ron Perlman:

And here's the UK version:

Pacific Rim opens in 3D and 2D in select theaters and IMAX on July 12, 2013.

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