All I've heard is that it will be marketed to both the LotR and the Passion markets. Which seems strange.

I don't know much else, but IMdB provides much trivia:

* Walden has optioned the entire seven-part "Chronicles of Narnia" fantasy book series for film development.

* The movie had two fake working titles: "The Hundred Year Winter" and "Paravel". Signs in Auckland which directed extras and crew to the sets had "Paravel" written on them.

* When placing ads in "The New Zealand Herald" for extras, the call was put out for people under 5ft and over 6ft. Extras calls were made in the NZ main cities of Auckland, Wellington and Christchurch over a period of two weeks.

* The makers asked for permission to bring in 12 reindeer to New Zealand to pull the Ice Queen's sled. The Ministry of Agriculture and Forestry denied, citing the potentially deadly "Q fever", from which the North American reindeer population suffers, as the reason. However, eight wolves were allowed in for filming in Auckland.

* Michelle Pfeiffer was offered the role of the White Witch, but turned it down due to family obligations. She was the only major Hollywood star to have been contacted about the movie.

* Tilda Swinton hadn't read the book prior to filming.