Current and former NFL players react to Concussion movie

Concussion was released in theaters on Christmas Day.

NFL players have been sharing their reactions to the film Concussion, released in theaters nationwide on Christmas Day.

In the film, based on true events, Will Smith plays Dr. Bennet Omalu, the forensic pathologist who has been vocal against the NFL’s attempts to suppress his research on the discovery of chronic traumatic encephalopathy (CTE) and brain damage in deceased football players.

NFL players are able to redeem free admission to the movie by showing their NFL Players Association card at Cinemark theaters.

The MMQB screened Concussion with 70 former NFL players, and received emotional reactions from several players.

Below are some reactions from current and former players on Twitter.

Took my boys to #Concussion last night, important movie 4 all those involved in game! As we know more we MUST do more... #CommunicationIsKey

— Kurt Warner (@kurt13warner) December 26, 2015

At The Movie "CONCUSSION "words can't describe the range of Emotions!!!

— Bernie Kosar (@BernieKosarQB) December 26, 2015

#ConcussionMovie smears Dave Duerson and all of us who serve or served on disability board. Filmakers are cowards to lie about a dead man.

— robert smith (@Robert26Smith) December 26, 2015

They aren't getting my money. Watch the PBS documentary League of Denial, you can buy it for 1.99 on @YouTube https://t.co/oVJpSBW15E

— robert smith (@Robert26Smith) December 26, 2015

Just watched Concussion. A great movie & a frightening reality.

— Matt Overton (@MattOverton_LS) December 25, 2015

Concussion was a great movie!

— Jaiquawn Jarrett (@jaiquawnjarrett) December 25, 2015

Just saw concussion. Scared the hell out of me.

— Dustin Fox (@DustinFox37) December 26, 2015

Watching this movie concussion and sheeesh!!!

— Johnthan Banks (@JBanks_27) December 26, 2015

Concussion a great movie to see. A true insight to the mystery under the helmet. pic.twitter.com/C8eRBtKanP

— Stephen Tulloch (@stephentulloch) December 26, 2015

Will Smith shows 'painful reality' in 'Concussion' https://t.co/BGUPxj0AoC via @USATODAY parents of kids playing!

— Ed Reed (@TwentyER) December 27, 2015