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OTRC: Zachary Quinto talks 'Star Trek Into Darkness' Kirk-Spock relationship

Zachary Quinto and Chris Pine talk to OTRC.com about 'Star Trek Into Darkness' ahead of its May 16, 2013 release.

Toward the end of the 2009 film "Star Trek," Chris Pine's interpretation of Captain James T. Kirk and Zachary Quinto's version of Spock finally begin to develop their bromance after being at odds for the bulk of the film.

Now the two reunite in the upcoming sequel "Star Trek into Darkness" and Quinto says that it's their relationship that is the heart of the film.

"I think the first movie was about Spock grappling with his humanity and this movie's about him embracing it and that allows him to be more vulnerable and allows him to be witnessed in his vulnerability in a way that is uncharacteristic for the history of his journey," Quinto said. "But it's important, I think, that he evolve and that the relationship between Kirk and Spock evolve and that's a really big part of this movie, I would say, it's really at the heart of it."

In "Star Trek Into Darkness," the crew of the Enterprise is called back home, only to discover that an unstoppable force of terror within the ranks of Starfleet, played by "Sherlock" actor Benedict Cumberbatch, has destroyed the organization and everything it stands for. Captain Kirk and the crew of the Enterprise put everything at stake in order to capture the one man weapon of mass destruction.

Pine said the film his bolder than its predecessor because of the new and difficult challenges the characters face.

"I think it's bolder because these characters are faced with kind of the absolutely opposites of what you would expect from them," Pine told OTRC.com. "For someone like Kirk, who's so self-assured in the first film, I think in the second is met with an incredible amount of self-doubt and that's a scary place for a guy like that to be. And certainly for Spock, a man who's so kind of close-lidded."

When asked what was his favorite moment in the movie, Pine also said he shared a great scene with Cumberbatch, who plays the villain John Harrison.

"I do have a really nice moment with Benedict, who plays a character, John Harrison, who's our evil baddie, when we captured him and he's behind this kind of glass partition," Pine said. "The great thing about Benedict is that he brings this kind of Hannibal Lecter-ish, cold, scalpel-like, robotic, clinical..."

He added, "But Kirk's this kind of like cowboy. And to see these two completely diametrically opposed physicalities, I think, next to one another is kind of fun and the mayhem that Benedict is wielding without doing all the much I think is quite something."

"Star Trek Into Darkness" hits theaters on May 17. Check out the trailer below.

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