Rebirth of Mothra III
モスラ 3 キングギドラ来襲 (original)
In the final film in the new 'Mothra' trilogy, King Ghidorah, the most destructive of all the monsters, returns to destroy the Earth. In the end, Mothra is indeed triumphant and takes her place among the greatest of all monsters.
Starring Megumi Kobayashi, Misato Tate, Aki Hano, Atsushi Ônita, Tsutomu Kitagawa, Koichi Ueda, Sayaka Yamaguchi, Shirô Namiki
It's a action & adventure and fantasy movie, and has a rating of 5.7 out of 10 from Imdb which is fairly okay for this kind of movie.
Watch it here
Not found streaming from Australia.