New Trailer! Reese Witherspoon in 'How Do You Know'

Reese Witherspoon, Paul Rudd and Owen Wilson star in the upcoming romantic comedy "How Do You Know," from director James L. Brooks ("As Good As It Gets"). Witherspoon plays a former athlete who finds herself in the middle of a love triangle, as a corporate guy (Rudd) in crisis competes with Lisa's current, baseball-playing beau (Wilson). Watch the trailer!

"How Do You Know" opens in theaters Dec. 17.