Update: The National Secular Society has made the educational DVD Why Atheism? (which we reported the release of in December) available to buy exclusively from the NSS shop. The DVD features six films, including an extended interview with Philip Pullman in which “the best-selling novelist and honorary associate of the National Secular Society talks to Michael Rosen about morality, fundamentalism, his atheist heroes and fears for the future of atheism.”

You can find out about the rest of the DVD's contents and buy a copy for yourself here.