Released in July of 2015 to modest critical acclaim but notable box office, Southpaw was written by Sons of Anarchy creator Kurt Sutter and originally had rapper Eminem attached to star. After he dropped out and Gyllenhaal took over, the actor would put on over 28 pounds of muscle thanks to his extensive training which included an 8-mile run every day. In the film his character Billy Hope is a boxer that falls on very hard times and must fight his way back to the top. He's joined in the movie by Forest Whitaker, Naomie Harris, Curtis "50 Cent" Jackson, Oona Laurence, and Rachel McAdams.
