Will Smith is back in an all new trailer for Concussion.
Concussion looks at the research of Doctor Bennet Omalu, who discovered a neuro-degenerative disease caused by repeated head trauma in the brains of two former NFL athletes- Dave Duerson and Andre Waters.
The disease we know as chronic traumatic encephalopathy or CTE, can bring on symptoms such as memory loss and depression, or even suicide, which is what happened to Duerson and Waters.
The trailer sees Smith going head to head against the NFL!
You can catch the film when it hits theaters Christmas Day!
