Reese Witherspoon Goes Glam for the UK Premiere of 'This Means War'

Reese Witherspoon This Means War - H 2012
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Reese Witherspoon This Means War - H 2012

The rom-com/thriller combo, co-starring Chris Pine and Tome Hardy, opens on Valentine's Day in the States.

Reese Witherspoon's latest romantic comedy doesn't hit theaters in the US for another two weeks, but the spy-against-spy love story, This Means War, had it's UK premiere Jan. 30. 

The actress chose a sparkly black and green sequin Louis Vuitton dress with ruffles and black Christian Louboutin heels to walk the British red carpet.

PHOTOS: Movie Stills From 'This Means War'

To complete the look, Witherspoon, who was joined by the film's director McG and her co-stars Chris Pine and Tom Hardy, left her blonde hair long and straight and showed off the return of  blunt bangs. 

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Hardy was sporting a winter beard and wore a bright red scarf over his suit (which was paired with a blue tie), while Pine went classic in a pinstripe suit by Ralph Lauren. 

McG went sporty with a blue and white checkered shirt under his grey suit. 

VIDEO: New 'This Means War' Clip 

The film opens in the U.S. on Valentine's Day.