When Black Belt magazine featured Benicio del Toro on its May 2003 cover, it captured an actor at the height of his intensity known for his brooding roles and quiet power. Two decades later, at 58, del Toro channels that same presence in a surprising new form: as Sensei Sergio St. Carlos, a local karate instructor in the upcoming film One Battle After Another . Del Toro’s latest performance bridges art and philosophy, echoing the martial wisdom celebrated in the pages of Bla