I’ve been a huge Jake Gyllenhaal fan for awhile now. Last year, I felt he should have garnered an Oscar nomination for Nightcrawler as he played the creepy yet focused Lou Bloom but was snubbed. That character, a frail, almost soulless individual wanted success by any means. His latest character, Billy “The Great” Hope for Southpaw deals with success in a totally different manner. The film’s debut trailer appeared today via Eminem’s YouTube channel and has already garnered plenty of buzz.

In a role originally meant for Eminem, Gyllenhaal takes the ups and downs of being a champion boxer who suffers a series of career and psychologically damaging incidents that derail not only his promise but his life. Gyllenhaal bulked up, adding on 30 pounds of muscle to his frame in the flick which is directed by Antoine Fuqua and has a script penned by Sons of Anarchy creator Kurt Sutter. Ironically enough, it’s supposed to be a non-linear addition to the 8 Mile universe.

“In a way, this is a continuation of the 8 Mile story, but rather than a literal biography, we are doing a metaphorical narrative of the second chapter of his life,” Sutter told Deadline back in 2010. “He’ll play a world champion boxer who really hits a hard bottom, and has to fight to win back his life for his young daughter. At its core, this is a retelling of his struggles over the last five years of his life, using the boxing analogy. I love that the title refers to Marshall being a lefty, which is to boxing what a white rapper is to hip hop; dangerous, unwanted and completely unorthodox. It’s a much harder road for a southpaw than a right handed boxer.”

The film is rounded out by an all-star cast which includes Rachel McAdams, Naomie Harris, Forest Whitaker, Tyrese Gibson, Victor Ortiz, Rita Ora, Clare Foley, Beau Knapp and Oona Laurence. Check out the trailer above. Southpaw hits theaters July 31st.