Jason Momoa on Wild Pig He Adopted in Hawaii and Having Fun on 'Slumberland' Set (Exclusive)

Jason Momoa hit the red carpet at the premiere of his new film Slumberland without

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Momoa walked the carpet outside the AMC Century City 15 in Los Angeles on Wednesday

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decked out in dark purple pajamas, and stopped to talk with ET's Matt Cohen

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When asked by he didn't bring the cute pig to the event, Momoa explained, "Oh, he's in Hawaii!

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"I think it would've been pretty gnarly though," Momoa added with a smile.

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The actor revealed that he'd recently adopted the boar after filming his latest movie

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