One thing is certain about The Devil Wears Prada 2 : The ambitious undertaking of making a sequel of a cult status film after 20 years has succeeded, at least as far as box office figures are concerned. The numbers speak for themselves, with $77 million generated in US theaters and another $157 million in the rest of the world since its April 29 release. In the face of such a box office smash , this installment has inspired heated debates for days about its quality and comparisons to the original. In Italy, those arguments even extend to the dubbing of the film. The controversy stems from the choice of voice actors in the Italian version of The Devil Wears Prada 2 , who are themselves a nod to continuity; it's the same cast as the original.…