'Concussion' doctor aiding marijuana-based research company

The doctor portrayed in the upcoming football movie "Concussion" is on the board of a company looking for a marijuana-based treatment for head injuries.

Bennet Omalu was recently named to the scientific advisory board of Kannalife Sciences, which has been developing marijuana-based products to treat the effects of concussions.

Omalu conducted the autopsy on former Steelers center Mike Webster that led to the discovery of chronic traumatic encephalopathy or CTE. The concussion-related disease has been found in the brains of a number of former NFL players during autopsies.

Omalu is portrayed by Will Smith in the movie, which tells the story of the scientist's discovery of CTE and how the NFL dealt with the revelation. The movie is due out in Christmas.