Special effects of The Lord of the Rings film series Later on, the scenes were merged using digital effects. Besides Weathertop, many of the other scenes in the Lord of the Rings trilogy were shot in this way, first by filming the scenery or set miniatures, then the actors on a studio set, and merging the two together. An example of this is in the Mines of Moria, when the Fellowship was fighting the Cave-troll in Balin's Tomb, and again when the Fellowship is on the Khazad-Dum stairs and bridge. Gandalf has his own particular scene with computer graphics as he grapples with the Balrog as they fall to their
Principal photography of The Lord of the Rings film series that ultimately had nothing to do with conservation purposes the Department of Conservation is required to promote. The filming of parts of "Lord of the Rings" in Tongariro National Park caused enough disturbance to some areas of the Park, (including one known locally as 'Orc Road') that contractors had to be hired to restore the areas later. In December 2005, a contractor won an award from the Department of Conservation for their restoration work. Principal photography of The Lord of the Rings film series Principal photography for "The Lord of the Rings" film trilogy was conducted concurrently in New Zealand