Garry Kasparov was a consultant to ensure accuracy. He was the number 1 player in the world from '84 until he retired in '05.
I enjoy playing chess myself, but don't get many opportunities to do so, as very few I know play. I'm no where near good enough to compete in tournaments, but do enjoy working through some puzzles and the occasional online game.
My son was interested in learning a year ago or so, but it faded. He's recently been interested in Texas Holdem and I've been teaching him how to play, along with my daughter. May be time to see if they'd like to take another look at chess seeing they'll be turning 8 and 6 soon.
I imagine with the popularity of the series, chess sets may be a popular gift for Christmas.