All fashionable eyes may currently be focused on the brouhaha going down at the tents, but on Thursday evening in London, a very elegant Renée Zellweger, posing at a preshow party for the U.K. premiere of “Cinderella Man,” made a bid for diverting that gaze eastward. Wearing a black strapless, silk faille dress with an embroidered ribbon bow from Carolina Herrera’s latest resort collection, topped off with a Cartier ring, Judith Leiber clutch and black satin Manolos, Zellweger gave her British audience a taste of classic American chic. “Renée always looks beautiful and effortless,” said Herrera of one of her favorite Hollywood mannequins. Will Zellweger make an appearance at Herrera’s show Monday morning? Turn those eyes back westward and wait with bated breath.