Chris Pine and Olivia Munn Break Up

Chris Pine and Olivia Munn Break Up
Olivia Munn and Chris Pine
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01/18/2010 AT 06:40 PM EST

Though they kept things private while dating this fall, Star Trek star Chris Pine and actress Olivia Munn have ended their romance, PEOPLE has confirmed.

The two kept their distance at the NY Times Style Magazine's Golden Globes cocktail party on Friday at the Chateau Marmont penthouse in West Hollywood. A source later told PEOPLE they've split up.

Munn and Pine, both 29, appeared cozy just two weeks ago, when they were spotted at The Woods in L.A., sipping cocktails and giggling together in the dimly-lit bar.

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