With "Hands of Stone," Robert De Niro officially enters his Burgess Meredith-in-"Rocky" phase, bringing the ringside grizzle and rumpled gravitas by the pound. In writer-director Jonathan Jakubowicz's peppy, none-too-probing biopic of Panamanian champion Roberto Duran, played by Edgar Ramirez, the "Raging Bull" Oscar winner (and let's not forget "Grudge Match") takes the role of legendary trainer Ray Arcel.