Jake Gyllenhaal plays Junior Middleweight champ Billy “The Great” Hope in Southpaw, directed by Antoine Fuqua, and underwent the full physical transformation, as you can see.
The film co-stars Rachael McAdams, 50 Cent, Rita Ora, Forest Whitaker, Naomie Harris, and Victor Ortiz.
Watch the first trailer, AFTER THE JUMP…
