Tom Hardy and Chris Pine are the suitors competing for her affections, and to add an extra twist to proceedings they're both best friends who happen to be highly-trained CIA field agents.
> McG This Means War interview
> Pine, Witherspoon on the McG experience
Witherspoon and Pine sat down with Digital Spy to discuss early roles ("She'd seen me in ER," quips Pine), Hardy's love for mixed martial arts and weigh in on the age-old Star Trek debate: Captain James T Kirk vs. Captain Jean-Luc Picard.
Pine admitted that his character's desire to impress Witherspoon's Lauren spilled over off-screen with Hardy.
"I think guys naturally do that when there's a beautiful woman around," he said.
"There's the inclination to out-charm the other, so Tom threw his best English accent at it and I tried to impress her with my hair."
This Means War opens in UK cinemas on March 2.