Watch amazing never-before-seen footage from behind the scenes of the upcoming boxing drama, SOUTHPAW. This new clip dives into the grueling, intense training Jake Gyllenhaal underwent with director Antoine Fuqua to prepare for his demanding role as fighter Billy “The Great” Hope. Take a look at how Jake managed to transform himself, both mentally and physically, into a light heavyweight champion in just a few month’s time. Be sure to catch SOUTHPAW when it hits theaters everywhere on July 24th