These days, we can't seem to escape the notion that men in Hollywood just can't stay faithful to one woman. Jude Law's recent infidelity and the speculation that Brad Pitt cheated on Jennifer Aniston are the focus of the media's fascination. Whether these actors live in such a different reality that this kind of thing might be part of the job description, we can't say. But when Jude and Brad can't keep from straying from seemingly ideal women like Sienna Miller and Aniston, we're left to wonder what that means for the rest of us. A poll done by the New York Times in 2000 found that 44 percent of the male respondents admitted to having had an extramarital affair (and that percentage doesn't include those unfaithful guys who weren't willing to own up to their transgressions). Are men inherently unfaithful? What really makes guys cheat? We asked the Love Council to weigh in.