As grandmother to three rambunctious, sports-loving grandsons who regularly bonk, bruise and bump-up their heads and who will likely continue playing sports through to their adult years, concussions have long concerned me. After seeing CONCUSSION, my concerns about repetitive blows and bonks to my beloved boys' brains in the long-term have grown even deeper. (And are now, in a way, confirmed and justified.)

CONCUSSION tells the disturbing story of Dr. Bennet Omalu's mission to wake up...