Godzilla vs. Hedorah (1971)
"Gojira tai Hedorâ" (original title)

PG  |   |  Action, Adventure, Horror  |  February 1972 (USA)
Your rating:
    1 2 3 4 5 6 7 8 9 10 -/10 X  
Ratings: 5.9/10 from 2,644 users  
Reviews: 75 user | 66 critic

From Earth's pollution a new monster is spawned. Hedorah, the smog monster, destroys Japan and fights Godzilla while spewing his poisonous gas to further the damage.



, (as Kaoru Mabuchi)
0Check in

On Disc

at Amazon

Learn more

People who liked this also liked... 

Action | Adventure | Horror
    1 2 3 4 5 6 7 8 9 10 5.7/10 X  

A man begins to suspect that something is wrong about his employers; meanwhile, Godzilla and Anguirus are alerted to something strange going on.

Director: Jun Fukuda
Stars: Hiroshi Ishikawa, Yuriko Hishimi, Minoru Takashima
Action | Adventure | Comedy
    1 2 3 4 5 6 7 8 9 10 5.1/10 X  

A young man steals a boat to find his brother, but he and his shipmates become shipwrecked on a mysterious island inhabited by a giant sea monster and a slumbering Godzilla.

Director: Jun Fukuda
Stars: Akira Takarada, Kumi Mizuno, Chôtarô Tôgin
Action | Fantasy | Horror
    1 2 3 4 5 6 7 8 9 10 6.3/10 X  

Apelike aliens build a robotic Godzilla to destroy Japan, and the true Godzilla may not be powerful enough to destroy it.

Director: Jun Fukuda
Stars: Masaaki Daimon, Kazuya Aoyama, Reiko Tajima
Action | Adventure | Drama
    1 2 3 4 5 6 7 8 9 10 6.2/10 X  

Godzilla comes to the rescue when an alien race rebuilds Mechagodzilla to destroy Earth's cities. A traitorous scientist gives them a second weapon: Titanosaurus.

Director: Ishirô Honda
Stars: Katsuhiko Sasaki, Tomoko Ai, Akihiko Hirata
Action | Horror | Sci-Fi
    1 2 3 4 5 6 7 8 9 10 6.6/10 X  

Female aliens take control of Earth's monsters and begin using them to destroy the human race.

Director: Ishirô Honda
Stars: Akira Kubo, Jun Tazaki, Yukiko Kobayashi
Action | Adventure | Fantasy
    1 2 3 4 5 6 7 8 9 10 6.7/10 X  

After a meteorite unleashes a three-headed beast upon Tokyo, Mothra tries to unite with Godzilla and Rodan to battle the extraterrestrial threat.

Director: Ishirô Honda
Stars: Yôsuke Natsuki, Yuriko Hoshi, Hiroshi Koizumi
Action | Adventure | Sci-Fi
    1 2 3 4 5 6 7 8 9 10 4.3/10 X  

The undersea nation of Seatopia sends the gigantic Megalon to destroy the world above - and it's up to Godzilla and a size-shifting robot, Jet Jaguar, to defeat him.

Director: Jun Fukuda
Stars: Katsuhiko Sasaki, Hiroyuki Kawase, Yutaka Hayashi
Action | Adventure | Romance
    1 2 3 4 5 6 7 8 9 10 6.4/10 X  

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.

Director: Ishirô Honda
Stars: Nick Adams, Akira Takarada, Jun Tazaki
Adventure | Fantasy | Sci-Fi
    1 2 3 4 5 6 7 8 9 10 6.1/10 X  

In the midst of another rampage by Godzilla, Mothra emerges to save the human race from Battra.

Director: Takao Okawara
Stars: Tetsuya Bessho, Satomi Kobayashi, Takehiro Murata
Action | Adventure | Drama
    1 2 3 4 5 6 7 8 9 10 6.6/10 X  

The United Nations assembles the ultimate weapon to defeat Godzilla, while scientists discover a fresh pteranodon egg on a remote Japanese island.

Director: Takao Okawara
Stars: Masahiro Takashima, Ryoko Sano, Megumi Odaka
Action | Adventure | Fantasy
    1 2 3 4 5 6 7 8 9 10 5.8/10 X  

Godzilla is threatened by two new forces: Mogera - another UN built machine; and Space Godzilla - a beast spawned from Godzilla's particles in space.

Director: Kensho Yamashita
Stars: Megumi Odaka, Jun Hashizume, Zenkichi Yoneyama
Action | Horror | Sci-Fi
    1 2 3 4 5 6 7 8 9 10 6.3/10 X  

Japan creates an artificial black hole device to trap Godzilla forever, but a test of the device creates new foes for Godzilla, car-sized dragonflies called meganula and their queen, Megaguirus.

Director: Masaaki Tezuka
Stars: Misato Tanaka, Shôsuke Tanihara, Masatô Ibu


Cast overview, first billed only:
Akira Yamauchi ...
Dr. Toru Yano
Toshie Kimura ...
Toshie Yano
Hiroyuki Kawase ...
Ken Yano
Toshio Shiba ...
Yukio Keuchi
Keiko Mari ...
Miki Fujiyama
Yoshio Yoshida ...
Gohei - a fisherman
Haruo Suzuki ...
JSDF Officer
Yoshio Katsube ...
JSDF Engineer
Susumu Okabe ...
Announcer A
Kentaro Watanabe ...
Announcer B
Wataru Ômae ...
Police Officer
Tadashi Okabe ...
Shigeo Katô
Takuya Yuki ...
Eisaburo Komatsu ...
Non Commissioned Officer


A pollution monster named Hedorah comes from outer space. First it terrorizes sea, then it goes on land where it encounters the big G. After it's after the fight with Godzilla it retreats, only to reappear again in a flying form, it's starts to kill people. Then it takes on it's final form, that's when the Big G comes and the battle that decides the fate of the world begins. Written by Spaceroach

Plot Summary | Add Synopsis


Our environment is doomed!

Motion Picture Rating (MPAA)

Rated PG for sci-fi monster violence and brief mild language | See all certifications »

Parents Guide:





Release Date:

February 1972 (USA)  »

Also Known As:

Godzilla vs. the Smog Monster  »

Box Office


JPY 90,000,000 (estimated)

Company Credits

Production Co:

Show detailed on  »

Technical Specs


Sound Mix:


Aspect Ratio:

2.35 : 1
See  »

Did You Know?


Over the decades, fans have kept wondering what the strange orbs that Godzilla rips out of Hedorah's dried-out body actually are. Most think that they are either eggs or his eyes, and there's a common joke that they are his testicles. According to the director, those are meant to be Hedorah's eyes, which he considered the most important part of a person's body. The movie also has a running theme of eyes being injured. See more »


When the child notices Godzilla from far away on the roller coaster ride, it is clear that "Godzilla" in this case is just a badly drawn blotch of paint, which also appears to be far too dark for its supposed environment. See more »


Dr. Yano: It probably came from a sticky, dark planet far, far away. Now go to sleep.
See more »

Crazy Credits

In AIP's American version of the film, the entire cast is mysteriously uncredited. See more »


Follows King Kong vs. Godzilla (1962) See more »


Kaese! Taiyô wo
("Return! The Sun")
Main Title Theme
Music by Riichirô Manabe
Lyrics by Yoshimitsu Banno
Sung by Keiko Mari, the Honey Knights and the Moon Drops
See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

Craziest movie ever!
22 November 2001 | by (Norway) – See all my reviews

Something spooky is happening on the Japanese coast; pollution is killing the fish in the ocean, but it also gives life to a monstrous mutated fish-monster. A professor and his genius kid watch it's destructions on TV, and the kid remarks: "- Oh, that was a tadpole-monster." Japan and the entire world is soon threatened by the unearthly Creature, who's named Hedorah by the Professors kid.

At the same time a funky teenage assistant of the professor gets drunk at an absurdly psychadellic disco and has visions of all the party-people being mutated fish. Hedorah inhales polluted smoke from factory- chimneys and seem to get high, the kid is psychic and has visions of Godzilla coming to save the world, and the Professor is attacked by the Hedorah underwater and his face gets malformed. Godzilla and the "Smog Monster" (as it is sometimes referred to as) start fighting only 25 minutes into the movie. The Hedorah mutates from ocean- dweller, to reptile to flying creature, and experts conclude that "He" is probably from a distant Nebula in outer space. Scenes of havoc and the Professor's family is intercut with cartoon- style sequences with strong enviromental messages.

One scene has the Hedorah flying over a group of people working out, and they turn blue-faced and ultimately into gushy skeletons. A man at a construction site screams out (extremely) loud, and then falls to his death. Hedorah has the ability to corrode metal, and people on TV quarrel intensely on the fate of the planet. The Professors assistant knows the end is near, and has a hippie-styled party on top of a mountain; "- Let's have fun as we die!!" The party is interrupted by the space/pollution freak, and most of the kids are melted by its poisonous vomit/droppings when they try to set it on fire.

The Professor's kid has found the solution to defeat the grotesque beast: "- Dry it - it's only sludge!", and with the aid of the friendly Godzilla it finally works. Some scenes, as well as the sounds the Hedorah makes are beyond description; like the scene were it's covering Godzilla with its tons of toxic puke, and at the same time "laughing" diabolically. There are weird crosscutting throughout, the kid yells "Papa" alot and the groovy rock score helps to its remarkably insane mood. The PG- rating should be reconsidered. This one is too dark and demented in so many ways, I don't think a ten year- old should watch it. It's mad nightmarish, art-cinematic style could cause damage.

A TV- reporter calls the Hedorah "a freak organizm" - much like this movie itself.

10 of 12 people found this review helpful.  Was this review helpful to you?

Message Boards

Recent Posts
Godzilla Mini Movie fullmetalcos
Did this movie scare any of you when you were little? Angel_Meiru
People in the bushes fabo234
Should've been shown on Mystery Science Theater 3000 SPRTN2001
Smog Monster playing Syracuse, NY webmaster-1936
that guitar solo... belljar666
Discuss Godzilla vs. Hedorah (1971) on the IMDb message boards »

Contribute to This Page

Create a character page for: