Will Smith opening a movie used to guarantee success. Can he make people care about concussions?

"Concussion" is supposed to be the movie that shows us Will Smith is a Serious Actor.After helming a series of films that either weren't memorable ("Men in Black 3″), under-performed ("Focus") or simply flopped ("After Earth"), Smith, 47, is in the position of trying to convince us he's capable of being more than just Mike Lowrey, Hitch and Hancock.