'Gravity,' a breathtaking space adventure ★★★ 1/2

Sandra Bullock and George Clooney are lost in space in this eye-popping Alfonso Cuaron spectacular. "Gravity" defies itself. Sandra Bullock and George Clooney play astronauts — a newbie scientist and a veteran cowboy — who dodge space debris and the usual narrative expectations while coping with a highly compressed series of crises 372 miles above the Earth's surface. It's a nerve-wracking visual experience of unusual and paradoxical delicacy. And if your stomach can take it, it's truly some...