Fans should make no mistake: Will Smith has returned for an outstanding performance as the real-life Dr. Bennet Omalu in the new film "Concussion," according to Deadline.

"You've gave their biggest boogeyman a name," Alec Baldwin said in the trailer of the new film that highlights the horrors of head trauma for players in the NFL.

The film is about Omalu, who was an immigrant to the U.S. and a brilliant neuropathologist that made so many waves that his own life was in peril. The film highlights his discovery of CTE, which is a football related brain trauma syndrome that addresses the condition of players after they are subjected to repetitive head trauma as a result of the fierce game.

Omalu did not just discover the condition, which causes severe affliction in football players, but he also ushered in the era of awareness for the condition and brought nothing but scandal to the NFL.

Several parts of the trailer showed Omalu in severely stressful situations trying to bring this condition into the light and expose the NFL's subsequent cover up of the issue. His own life becomes threatened at several points in the film and he is told repeatedly to "let it go" or "say he was wrong."

The film seems to be a classic capitalist thriller involving the big money of the NFL and the small money of the educated smart man who comes to America to save lives.

"You're going to war with a corporation that owns a day of the week," a man told Omalu in the trailer, referring to the TV dominance the NFL has on Sunday.

Ridley Scott produced the film, and it was directed by Peter Landesman. The film is actually based off the GQ article "Game Brain," which was written by Jeanne Marie Laskas.

Check out the trailer below for the film: