Sometimes the funniest part of a film are the bits we aren't meant to see! In this behind-the-scenes look at the soon to be released rom-com How Do You Know, even Oscar-winning Reese can't keep a straight face.
The film stars Reese as a former athlete who gets caught in a love triangle when she meets a corporate guy who tries to compete with her current partner.
Paul Rodd and Owen Wilson play the two men in question, while Jack Nicholson also heads up the cast, and it looks like they had a real scream on set!
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