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PALM SPRINGS, CA - JANUARY 03: Dr. Bennet Omalu, actor Will Smith and director Peter Landesman speak at a screening of "Concussion" at the 27th Annual Palm Springs International Film Festival on January 3, 2016 in Palm Springs, California. (Photo by Vivien Killilea/Getty Images for PSIFF)

PALM SPRINGS, CA - JANUARY 03:  Dr. Bennet Omalu, actor Will Smith and director Peter Landesman speak at a screening of "Concussion" at the 27th Annual Palm Springs International Film Festival on January 3, 2016 in Palm Springs, California.  (Photo by Vivien Killilea/Getty Images for PSIFF)