The actor explained that the first scenes he filmed for the sequel took place on the bridge of the Enterprise, which Pine described as "overwhelming".
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"The first day going back to work we did all the bridge stuff," Pine told Collider, "and that's always... Even if you're not a fan, and I was never a fan of the series... But you cannot help but step on that bridge and feel kind of overwhelmed.
"It's just the set, you're like 'God, I gotta fly this thing!'"
Star Trek 2 writer Alex Kurtzman has suggested that Kirk may not be ready to be captain.
Pine has previously described the sequel as "character-driven".
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Star Trek 2 will be released on May 17, 2013.
Watch Damon Lindelof discuss the differences between writing for Prometheus and Star Trek below:
