Will Smith's new movie "Concussion" tackles one of the NFL's biggest controversies: traumatic brain injury experienced by players.
The film is based on the true story of Dr. Bennet Omalu, a forensic pathologist who first discovered that chronic brain injury played a role in the deaths of some former NFL players.
The degenerative disease is known as chronic traumatic encephalopathy (CTE).
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As Smith's character tries to bring the truth to light, he's met with roadblocks by NFL officials, who try to discredit and silence him.
"You're going to war with a corporation that owns a day of the week," he's told.
The movie is set to hit theaters on Dec. 25, right in the middle of football season.
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