While the new Will Smith film Concussion may lead some to question their support of the NFL, the forensic pathologist in the movie said he wanted his discoveries to "advance football." Concussion tells the true story of Dr. Bennet Omalu who stumbled upon an insidious brain disorder affecting football players. Omalu said he wanted to use his knowledge to make a difference like Will Smith had. Smith said the script enlightened him about the dangerous effects of multiple concussions. As a parent with a son who played four years of football, Smith said he had no idea about the dangers.