Warrior (2011)

The youngest son of an alcoholic former boxer returns home, where he's trained by his father for competition in a mixed martial arts tournament - a path that puts the fighter on a collision course with his estranged, older brother.
 
Director:  Gavin O'Connor
Writers:  Gavin O'Connor (screenplay), Anthony Tambakis (screenplay) 
Stars:   Tom Hardy, Nick Nolte, Joel Edgerton