Head Games: The Global Concussion Crisis is an expanded version of Head Games (2012), a 2012 documentary film that examines the effects of repeated concussions and subconcussive blows, particularly those associated with sports. It focuses on American football and hockey, but also covers boxing, soccer, lacrosse, and professional wrestling. It covers findings that chronic traumatic brain injury is occurring in female sports. Also covered is physiological evidence of brain injury in adolescent athletes.

Head Games is directed by Steve James, director of the highly acclaimed documentary, Hoop Dreams. It is a film followup to Christopher Nowinski's book, Head Games.The film features interviews with Nowinski (founder of the Sports Legacy Institute), Dr. Robert Cantu (a professor of neurosurgery at Boston University School of Medicine, Dr. Ann McKee, and Robert Stern, who are experts on chronic traumatic encephalopathy). In addition to other medical experts, it also extensively interviews athletes, their families, and journalists.