Speculation continues about the break-up of Brad Pitt and Jennifer Aniston, and what role Angelina Jolie may have played. At least three different rumors are circulating as to what may have been the cause.

Rumors of an Extramarital Affair

One rumor has it that Pitt and co-star Angelina Jolie were having an affair. This rumor began circulating last May, when Pitt was photographed holding Jolie's hand on the set while filming Mr. & Mrs. Smith. They both denied there was any romance.

A Recipe for Emotional Infidelity