LOS ANGELES, Feb 15 (Reuters.com) - In her new romantic comedy "This Means War" Reese Witherspoon portrays a woman who returns to dating after a failed relationship only to find herself torn between two men, who happen to be friends and CIA operatives. The film, which opens in theaters on Friday, tucks some dating drama in between a lot of action as the two men, played by Chris Pine and Tom Hardy, find their friendship put to the test when competing for the attention of Witherspoon's character, Lauren. Witherspoon's real life is more stable and less dramatic than Lauren's. ...