Side Effects is a 2005 romantic comedy about the pharmaceutical industry starring Katherine Heigl as Karly Hert, a pharmaceutical detailer, who becomes disillusioned with the lack of ethics in the pharmaceutical industry and has tough choices to make. Also starring Lucian McAfee, Dorian DeMichele, Dave Durbin, Temeceka Harris. The movies title is a reference to the medical term side effects.
Source: Wikipedia