The New Zealand Film and Video Technicians Guild have posted some specific and production confirmed data about the filming dates and schedule of the upcoming Wolverine movie, now with pre-pended X-men Origins in its name:

Wolverine
Format: Feature Film
Dates: Prep from October 8th; Shooting 10th Dec 2007 - 18th Janurary 2008 (2 week break over Christmas 21st Dec 2007 - 7th January 2008)
Locations: Queenstown and surrounds
Production Co: WOZ Productions