"Against the Tide" executive producer discusses history of sports and integration

      |The University of Alabama shattered a color barrier in sports in 1970. For the first time, the school hosted a racially integrated football team, the University of Southern California. A new documentary called "Against the Tide" chronicles the game, and how it helped change the south. Ross Greenburg, executive producer of "Against the Tide," joins the "CBS This Morning" co-hosts to discuss the history the film, which premieres on Showtime.