Nick Saban: A Football Life...NFL Films.

If you didn't get a chance to watch when it aired, you can see it here on Youtube.

Extensive interviews with Saban, Terry, Belichick, but I thought the most interesting were the interviews with Jason Taylor and how Saban got him past his reluctance to move from the 4-3 to the 3-4 when he came to Miami. The move transformed his career, and in Saban's first year, Taylor was named NFL Defensive Player of the Year. He was inducted into the NFL Hall of Fame in his first year of eligibility. Taylor has the highest respect for Saban.