It all adds up to a new and curious phase in the career of director Chris Columbus.

NEWYORKER: Stepmom

There are segments on props, make-up and costume and an interview with director Chris Columbus, which was sorely missed from the first DVD.

BBC: Potter DVD unlocks more secrets

Rowling has been thrilled with the making of the movie, which is being directed by Chris Columbus ("Bicentennial Man") and written by Steve Kloves ("The Fabulous Baker Boys").

CNN: Harry Potter creator at Palace