It wasn’t until Patrick Dempsey’s Tom finally gets his girl in this standard romantic comedy that I realized I had been rooting against him all along. Instead of feeling elated for the couple, I felt sorry for her. That’s less Dempsey’s problem than the screenplay’s, which makes his character a callous womanizer with ground rules designed to ward off any sort of lasting relationship (“no back-to-backs”). He nonetheless has Hannah (Michelle Monaghan) as his best friend, and when she gets engaged he gets jealous. Forget being maid of honor; she shouldn’t have even invited him to the wedding.