Meanwhile, Pitt's ex Jennifer Aniston has been doing pretty well on her own in Chicago, where she's filming The Break Up with Vince Vaughn (left, on the set). "She looks great – glowing," says one woman who spotted her. Indeed, she seems eager to show a small-town friendliness to Chicagoans, smiling and waving to fans. She even stopped to talk to four local teachers, saying, "Chicago is such a great city, but it's a little hot."