Will Smith steps into the shoes of Dr. Bennet Omalu in this December’s drama, Concussion. Dr. Omalu discovered CTE, a brain disease that is extremely prevalent in football players because of their repetitive head impacts. When he tried to prevent his findings to the NFL, they completely brushed it aside and Dr. Omalu had to fight to get them to change their rules and equipment to make the sport safer for players. Albert Brook, Adewale Akinnuoye-Agbaje and Alec Baldwin co-star. The movie is out on Christmas Day and you can check out the trailer below.