In This Means War, Chris Pine, 31, and co-star Tom Hardy play spies (and BFF's) who discover they've fallen for the same woman, played by Reese Witherspoon. At the UK premiere of the movie, the blue-eyed Pine said he could empathize with the conflict but didn't have any personal experience with it. "It's a difficult territory to be in. If my buddy is falling in love with a woman that I'm kind of interested in, but I'm not in love with, it's my buddy's deal," he told Cover Media. "You have to gauge if it's love or if it's lust. But I don't know, I've never been there."

Witherspoon, 35, and Hardy, 43, also hit the red carpet for the premiere. Witherspoon wore a shimmery green Louis Vuitton dress and Louboutin heels, while Hardy surprised fans with a scraggly beard and a red scarf. His date for the evening? Fiancee Charlotte Riley.

This Means War hits theaters on Valentine's Day.

Watch the trailer here:

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