Sports Illustrated’s Peter King has gotten his hands on an extended trailer for “Concussion” and published it alongside an interview with the film’s director, Peter Landesman.

The film stars Will Smith as Dr. Bennet Omalu, the Nigerian-born neuropathologist who first discovered Chronic Traumatic Encephalopathy, a brain disease that has led to concerns in recent years about the safety of football. King, who watched the film, says it details Omalu’s struggles to convince the NFL to admit the truth about the dangers of the game.

King released the trailer and interview as part of a larger column on Monday.

NFL owners are apparently taking the movie seriously enough that they spent a significant amount of time in May plotting a response to the film, according to PFT’s Mike Florio.

Landesman told King that he felt Omalu’s personal story was what really drew him in, rather than a desire to take down the NFL.

“When I heard about Bennet Omalu, I recognized that the story operated on a number of levels that made it completely unique,” Landesman said. “As an immigrant coming to America, who discovers a dangerous detail about the most American of things, America’s sacred cow, who then is forced to tell America about itself as a disaffected Nigerian, it was an extraordinary opportunity to explore what it is to be an American.”

The movie additionally stars Alec Baldwin as Dr. Julian Bailes, Adewale Akinnuoye-Agbaje as Dave Duerson and, reportedly, Luke Wilson as Roger Goodell.

Here’s a movie poster for the upcoming film as well:

“Concussion” has a planned release date of Dec. 25.

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