NFL Speaks Out About 'Concussion' Film

The Will Smith-starring movie tells the story of the doctor who sounded alarms about brain injuries in professional football.
2:04 | 12/23/15

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Transcript for NFL Speaks Out About 'Concussion' Film
Move on to the NFL. They are speaking out about "Concussion" which tells the story of the doctor who sounded alarm bells about the brain injuries in pro football. The league wants know they're doing everything they can and Ryan smith has this report. You're going to war with a corporation that owns the day of the week. Reporter: This morning, the national football league speaking out exclusively to ABC news just days before the premiere of "Concussion." Do you want fans see this movie. I think there's a benefit that we'll elevate the conversation around health and safety of our game. Reporter: The film's trailer suggesting back then the league didn't want to face issues concerning head trauma. The NFL does not want to talk to you. When a movie like this comes out and fans or maybe others say, this is a sign that the NFL tried to cover things up before. How do we know that they're not giving us all the information now? I say take a look at what we've done. Reporter: The league saying a lot has changed since 2005. Updates to 39 rules related to health and safety in the last decade. Implementing new concussion protocols and investing millions to improve equipment. Like special straps that aim to regulate head movement in the helmet. But is this enough? Dr. Omalu telling robin Roberts no matter how protective the helmet it won't stop head injuries. Look what happens when you have an impact, the brain bounces around this so assuming you take a padding, the padding will simulate the helmet. No matter how thick it is, look at what happens. What difference does it make when a head-to-head impact or some sort of very hard impact could traumatize the brain no matter how thick the outer protection layers are? You can improve the rules and you can improve the safety of the equipment. Reporter: Do you think we can ever stop head injuries in football? Is. Probably not but can minimize them to make the gape as safe as possible. Reporter: For "Good morning America," Ryan smith, ABC news, New York. This is becoming such a major issue and we just learned the nih announced a major new study of the whole issue of concussions and brain injuries, as well.

This transcript has been automatically generated and may not be 100% accurate.

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