Lauren (Reese Witherspoon, left) resists the formidable charms of FDR (Chris Pine), who is unused to rejection from the opposite sex in "This Means War." ©20th Century Fox. (Click on photo for hi-res version).

TMW-302 - Despite the handshake and smiles, it's all out war between best pals Tuck (Tom Hardy, left) and FDR (Chris Pine), who are battling over the woman (Reese Witherspoon), for whom they've both fallen for in "This Means War." ©20th Century Fox. (Click on photo for hi-res version).

Lauren (Reese Witherspoon) is caught between two secret agents, FDR (Chris Pine, left) and Tuck (Tom Hardy), who are waging war to win her love in "This Means War." ©20th Century Fox. (Click on photo for hi-res version).

Reese Witherspoon arrives at the Los Angeles premiere for 'This Means War' at Grauman's Chinese Theatre in Hollywood, CA on Wednesday, February 08, 2012. @Jesus Jimenez/Pacific Rim Photo Press. (Click on photo for hi-res version)