Southpaw is an American novel.
Southpaw is a 2015 American sports drama film directed by Antoine Fuqua , written by Kurt Sutter and starring Jake Gyllenhaal , Forest Whitaker and Rachel McAdams . The film follows a young boxer who sets out to get his life back on track after losing his wife in an accident and his young daughter to protective services . The film was released on July 24 , 2015 , by The Weinstein Company . The film marked one of the last films to be scored by James Horner , and one of three posthumous releases to feature his music .