What you are actually seeing is the opening act of the Tamaki Heritage Village Drama "The Chronicles of Uitara: Lost in Our Own Land" in Christchurch.

And a video out take of the movie "UTU" which is about the same period of New Zealand history in the 1800's during the Musket Rebellion of the Maori against land clearing actions by the Crown authorities of traditional Maori land holdings (a similiar events occurred in USA history during the 1800's as the Indian Wars and lead to "Trail of Tears" for the Cherokee native people as a forced removal to Oklahoma).