Will Smith may be campaigning for his third Academy Award nomination with the new trailer for the sports drama "Concussion."

Written and directed by Peter Landesman, the film chronicles the true story of forensic pathologist Bennet Omalu's fight to bring public awareness to chronic traumatic encephalopathy -- caused by repeated blows to the head -- in professional football players, and the obstacles he faced in challenging the political, cultural and financial interests of the sports business.

Opening Dec. 25, “Concussion” also stars Alec Baldwin, Luke Wilson, Gugu Mbatha-Raw, Arliss Howard, Paul Reiser, David Morse and Albert Brooks.