'Pacific Rim' Trailer Surfaces: Watch Now!

Guillermo Del Toro's sci-fi monster film comes alive in new larger-than-life teaser.

With a summer movie season already crowded with big superheroes, you'd have to be a giant robot or monster to vie for attention. Thankfully the new trailer for Guillermo Del Toro's sci-fi monster film "Pacific Rim" packs in more large-scale creatures and creations in one trailer than we've ever seen before.

"We always thought alien life would come from the stars," says the trailer's voiceover, "but it came from deep beneath the Pacific." The voiceover then lists the first cities hit by the Kaiju, which is both Japanese for "strange beast" and the name for the giant monster film genre that includes everything from "Godzilla" to "Cloverfield." But "Pacific Rim" contains something those films lacked: humans that fight back in giant robot suits.

"In order to fight monsters, we created monsters of our own," reveals the voiceover as it explains the origins of the Jaeger program that built the battling bots and developed the technology that connects two pilots together mentally — forcing man and machine to become one. And then there's punching. Lots of punching.

Del Toro has become known for his impressive use of special effects, previously wowing audiences with films like "Pan's Labyrinth" and "Hellboy." The film stars Charlie Hunnam and Idris Elba, as well as frequent Del Toro collaborator Ron Perlman, and "It's Always Sunny In Philadelphia" actor Charlie Day. But the real star of the trailer has to be the special effects, which mash up classic movie monsters with Del Toro's cutting edge vision of the future.

The film hits theaters July 12 (an appropriate phrase considering just how many buildings are actually hit in this trailer. The collateral damage in this film is off the charts.)