Invasion of Astro-Monster (1965)
"Kaijû daisensô" (original title)

G  |   |  Action, Adventure, Romance  |  29 July 1970 (USA)
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Ratings: 6.4/10 from 2,995 users  
Reviews: 52 user | 62 critic

Aliens from Planet X request the use of Godzilla and Rodan to fight off King Ghidorah, but have a better use for the three monsters.


(as Inoshirô Honda)
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Cast overview, first billed only:
Nick Adams ...
Akira Takarada ...
Jun Tazaki ...
Dr. Sakurai
Akira Kubo ...
Tetsuo Teri
Kumi Mizuno ...
Miss Namikawa
Keiko Sawai ...
Haruno Fuji
Yoshio Tsuchiya ...
Controller of Planet X
Takamaru Sasaki ...
Chairman of Earth Committee
Gen Shimizu ...
Minister of Defense
Kenzô Tabu ...
Commander from Planet X
Yoshifumi Tajima ...
Nadao Kirino ...
Military Aide
Kôji Uno ...
Namikawa's Associate
Tôru Ibuki ...
Kazuo Suzuki ...


Aliens from the mysterious Planet X, which resides on the dark side of of Jupiter, come to Earth asking its people to help them save their world from the dreaded King Ghidrah by letting them "borrow" Godzilla and Rodan. The aliens are actually planning to use the three monsters to take over our planet. Written by Todd A. Bobenrieth <TAB146@PSUVM.EDU>

Plot Summary | Add Synopsis


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Parents Guide:







Release Date:

29 July 1970 (USA)  »

Also Known As:

Godzilla vs. Monster Zero  »

Filming Locations:

Company Credits

Show detailed on  »

Technical Specs



Sound Mix:

(Westrex Recording System)



Aspect Ratio:

2.35 : 1
See  »

Did You Know?


In previous movies, Godzilla was an unstoppable villain that only cared about destroying the world. In the prequel to when this suit was used, Ghidrah, the Three Headed Monster, Godzilla became friendly towards people. This suit became the start of Godzilla's infamous "hero of the world" phase. Although Godzilla was still considered a danger in the movies, he still knew that he was to protect the people of Earth. See more »


In several shots, the track on which the military vehicles move, along with support beams holding them in place can clearly be seen. In some cases these supports hold the vehicles up so high that their tires don't touch the ground. See more »


Controller of Planet X: We need an exterminator, one that would drive away King Ghidorah. We need from you Monster Zero 1 and Monster Zero 2, Godzilla and Rodan.
Astronaut K. Fuji: Are you serious?
Controller of Planet X: Of course. Deadly serious. King Ghidorah was driven from Earth only with the combined strengths of Godzilla and Rodan. Would you help us?
Astronaut K. Fuji: Well, your request is quite unusual. We do not know how to answer that.
Glenn: Plus, we did not know where Godzilla and Rodan are. If we did, how are we suppose to catch them and bring them here?
See more »


Followed by Godzilla 2000 (1999) See more »

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User Reviews

Not enough monster footage,but still a good Godzilla film
11 March 2004 | by (UK) – See all my reviews

Monster Zero,to give this film it's most common name,is another quality Godzilla film coming on the heels of the classic Godzilla Vs Mothra and Ghidorah the 3 Headed Monster. The film is a slight notch down from those two,but still a hugely entertaining movie-inventive,exciting and quite spectacular considering it's comparatively low budget.

The film combines the monster battle plots of the previous films with an alien invasion story a la Battle In Outer Space. The idea of aliens controlling monsters to attack Earth would later be done to death in later series entries. The plot here is quite clever and interesting,although the film is a little slow and only really gets going in the final third,which has one of the best destruction scenes of the series {although spot the tiny bit of footage from the films Rodan and Mothra}. Not enough of the monsters is seen in this film,and the two battles are too brief,despite the priceless sight of Godzilla's victory shuffle.

Nevertheless,there is much to enjoy,including Nick Adam's VERY enthusiastic performance and some of his silly but cool dialogue,some very impressive special effects and visuals {one day people will stop saying the effects in these films are poor},and a rather daring alien/human romance that even includes sex, {although you'll have to listen for the reference}. The US version only had minor cuts and music cue alterations,nothing to ruin the film.

10 of 13 people found this review helpful.  Was this review helpful to you?

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