IMDb > Invasion of Astro-Monster (1965)
Kaijû daisensô
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Invasion of Astro-Monster (1965) More at IMDbPro »Kaijû daisensô (original title)

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Invasion of Astro-Monster -- Aliens from Planet X turn Godzilla, Rodan and King Ghidora loose in Japan, demanding Earth's surrender!  Using mind-control technology, the spacemen are set on world domination.
Invasion of Astro-Monster -- 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.


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Release Date:
29 July 1970 (USA) See more »
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. Full summary » | Add synopsis »
Plot Keywords:
User Reviews:
Underrated Godzilla film See more (53 total) »


  (in credits order) (verified as complete)
Nick Adams ... Astronaut Glenn Amer
Akira Takarada ... Astronaut K. Fuji
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 ... General
Nadao Kirino ... Military Aide
Kôji Uno ... Namikawa's Associate
Tôru Ibuki ... Xian
Kazuo Suzuki ... Xian
Fuyuki Murakami ... Councilman
Noriko Sengoku ... Female Delegate
Someshô Matsumoto ... Buddhist Priest
Kamayuki Tsubono ... Councilman
Toki Shiozawa ... Tetsuo's Mother
Yasuhisa Tsutsumi ... Official
Rinsaku Ogata ... Scientist
Masaaki Tachibana ... Scientist
Yutaka Oka ... Reporter
Saburô Iketani ... News Reader
Yoshizo Tatake ... Xian
Mitsuo Tsuda ... Xian
Hideki Furukawa ... Xian
Ryôji Shimizu ... Xian
Minoru Itô ... Xian
Takuzô Kumagai ... Xian
Tadashi Okabe ... Reporter

Haruo Nakajima ... Gojira
Masaki Shinohara ... Radon
Shôichi Hirose ... Kingugidora
rest of cast listed alphabetically:
Marvin Miller ... Fuji (voice: English version)
Gorô Naya ... Councilman (voice)

Directed by
Ishirô Honda  (as Inoshirô Honda)
Writing credits
(in alphabetical order)
Shin'ichi Sekizawa 

Produced by
Reuben Bercovitch .... executive producer
Henry G. Saperstein .... executive producer
Tomoyuki Tanaka .... producer
Original Music by
Akira Ifukube 
Cinematography by
Hajime Koizumi 
Film Editing by
Ryôhei Fujii 
Production Design by
Takeo Kita 
Second Unit Director or Assistant Director
Koji Hashimoto .... assistant director
Kôji Kajita .... chief assistant director
Sound Department
Wataru Konuma .... sound recordist
Sadamasa Nishimoto .... sound effects
Hisashi Shimonaga .... sound effects editor
Special Effects by
Tadashi Koike .... special effects production manager
Fumio Nakadai .... special effects wire work
Teruyoshi Nakano .... chief assistant director of special effects
Masao Suzuki .... special effects production manager
Eiji Tsuburaya .... special effects director
Akira Watanabe .... special effects art director
Visual Effects by
Sadamasa Arikawa .... special effects cameraman
Sadao Iizuda .... special effects opticals
Kuichirô Kishida .... special effects lighting
Yukio Manoda .... special effects cameraman
Hiroshi Mukoyama .... special effects opticals
Sokei Tomioka .... special effects cameraman
Haruo Nakajima .... special effects stunt choreography
Camera and Electrical Department
Shoshichi Kojima .... lighting technician
Editorial Department
Richard Krown .... post-production (US version only)

Production CompaniesDistributorsOther Companies

Additional Details

Also Known As:
"Kaijû daisensô" - Japan (original title)
"Godzilla vs. Monster Zero" - USA (imdb display title)
"Monster Zero" - USA
See more »
Germany:81 min | Japan:74 min (re-issue) | USA:93 min | Japan:94 min
Color (Eastmancolor)
Aspect Ratio:
2.35 : 1 See more »
Sound Mix:
Mono (Westrex Recording System)
Filming Locations:

Did You Know?

Nick Adams is speaking English throughout the Film, despite the fact he seems to be conversing with the other actors, who are clearly speaking Japanese. Adams was simply dubbed over into Japanese for the Japanese release. Conversely, when the film was finally released in the US, Nick Adams voice is the only voice not dubbed over. The Japanese speaking actors are dubbed over into English.See more »
Revealing mistakes: 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 »
Glenn:Mutual trust is a beautiful thing
Astronaut K. Fuji:That won't buy groceries.
See more »
Movie Connections:
Referenced in The Oral Generation (1970)See more »


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14 out of 14 people found the following review useful.
Underrated Godzilla film, 4 May 2004

I always thought "Monster Zero" (along with the one after, "Godzilla vs. The Sea Monster") was a bit underrated in the Godzilla film list. King Ghidrah makes his second appearance, and it is a lot more fun and interesting than his first ("Ghidrah The Three Headed Monster" from 1964).

This definitely isn't the fastest moving Godzilla film, but there are a lot of cool things to look at as the plot goes along slow at times. And the alien invasion/takeover plot is pretty decent if not overly original. The aliens look pretty cool and their hardware is 60's sci-fi retro, you gotta love it.

Nick Adams is pretty decent enough and gives the film a certain flair. It's a shame he had to leave us so soon, as it would have been a blast to have him return in a future Godzilla film.

The special effects are totally mid-60's Godzilla, with all the obvious miniatures being stomped on by the guys in the monster suits. There's one great shot where a doll of an astronaut gets lowered onto Planet X via an open elevator outside the spaceship, and as the doll is lowered to the ground in one lengthy camera shot, you can't help but laugh a little realizing that there was no attempt whatsoever to make that shot look real, or to hide the fact it's so fake with quick silly editing. But that's part of the charm of the early Godzilla films.

I always thought it was odd when, on Planet X underground, as the leader shows the astronauts the screen showing Ghidrah wildly attacking on the surface, that Ghidrah is in essence attacking nothing but rocks and dirt because that's all there is on the planet's surface. And also how Ghidrah flies past that huge painting of a planet in the distance a few times.

Godzilla and Rodan eventually save the Earth and that's what it's all about in a 1965 Godzilla film. Godzilla by this time was definitely all hero protecting his home planet. It's such a shame that unless a movie looks like a silly music video, so many kids won't watch it. Hopefully a lot of parents are introducing their kids to these old Godzilla films via DVD and video, because they sure aren't on TV much anymore.

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