In the upcoming thriller Side Effects (in theaters Feb. 8), Jude Law plays a psychiatrist who prescribes a new medication to a struggling patient. But no one could have guessed the negative effects the drug has -- and how it changes their lives.
Watch this iVillage exclusive clip from the film -- which also stars Channing Tatum and Catherine Zeta-Jones -- to see what happens when Mara's character desperately needs her doctor to calm her down.
