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Godzilla vs. the Sea Monster (1966)
"Gojira, Ebirâ, Mosura: Nankai no daiketto" (original title)

PG  |   |  Action, Adventure, Comedy  |  1969 (USA)
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Ratings: 5.1/10 from 2,612 users  
Reviews: 49 user | 59 critic

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.


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Cast overview, first billed only:
Akira Takarada ...
Kumi Mizuno ...
Chôtarô Tôgin ...
Hideo Sunazuka ...
Tôru Watanabe ...
Ryôta Kane
Tôru Ibuki ...
Yata Kane
Akihiko Hirata ...
Captain Yamoto
Jun Tazaki ...
Red Bamboo Commander
Ikio Sawamura ...
Elderly Slave
Pair Bambi ...
Mothra's Little Beauties
Hideyo Amamoto ...
Red Bamboo Naval Officer
Hisaya Itô ...
Red Bamboo Scientist #1
Tadashi Okabe ...
Red Bamboo Scientist #2
Kazuo Suzuki ...
Escaped Slave
Shôichi Hirose ...
Escaped Slave


Some teenagers want to obtain a boat to find a brother. When they look around a boat without permission, they find a thief who takes them on his escape. They are caught in a storm and arrive at Letchi Island where natives of Infant Island have been enslaved by the terrorist organisation Red Bamboo. Red Bamboo runs a heavy water factory to process a juice which holds off the monster, Ebirah, which otherwise traps them on the island. The young men meet beautiful but tough Daiyo and wake up Godzilla to put an end to the Red Bamboo. Written by Scott Hutchins <>

Plot Summary | Add Synopsis

Plot Keywords:

island | boat | godzilla | monster | mothra | See All (35) »


This is one lobster you don't want to order!

Motion Picture Rating (MPAA)

Rated PG for sci-fi monster violence | See all certifications »

Parents Guide:





Release Date:

1969 (USA)  »

Also Known As:

Godzilla vs. the Sea Monster  »

Company Credits

Production Co:

Show detailed on  »

Technical Specs


Sound Mix:



Aspect Ratio:

2.35 : 1
See  »

Did You Know?


This was the first Godzilla film with special effects directed by Sadamasa Arikawa. Eiji Tsuburaya had just started his own company and only supervised the effects work on this and the next two Godzilla films. Arikawa is uncredited in this film, however, with Tsuburaya receiving an honorary special effects credit. See more »


Godzilla gets awakened by electricity (lightning) earlier in the film, but when he runs into the electric wires surrounding the Red Bamboo base, he recoils like the electricity hurt him. See more »


Ichino: Is breaking in really that easy?
Yoshimura: Only amateurs think that.
See more »

Crazy Credits

For the Columbia/Tri-Star U.S. DVD release, which uses the original uncut Japanese version, the English language credits list the noted composer Masaru Sato as "Mararu Sato." See more »


Followed by Godzilla: Tokyo S.O.S. (2003) See more »


Samashite Mosura
(Mothra Awake)
Written and Arranged by Masaru Satô
Performed by Pair Bambi
See more »

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User Reviews

Big G was the weakest part of this movie
20 August 2006 | by (Huntsville, AL) – See all my reviews

Almost all Kaiju flicks involve two story lines, the story of the little guys and the story of the monsters. This is one of them where the story of the little guys is what really matters. A distinctly B movie, half-espionage and half-island-action, about a guy's search for his brother and getting caught up with a gang of various other guys and a beautiful native to stave off an organization's evil deeds in the South pacific. Pretty scenery. Pretty natives. Some fair jokes and some good 1960's style cheese action. Even Ebirah, a jumbo jumbo shrimp who guards the island, more or less, works well enough as a background piece. It is when the big piece of seafood tries to take center stage that things start slowing down.

By the time Godzilla shows up, the movie suffers from the monsters. Not only does the original Japanese soundtrack have a habit of playing just about the most inappropriate music for all of his scenes (look, jets are coming, let's play surf rock...he's smashing a base, let's play slow horror mood music); but there is the distinct problem the director has in getting the transition from Godzilla as a monster to a potential hero down right. Too often, Godzilla's actions make no sense. He seems to like people in one scene. In the next, he is randomly destroying things again.

The movies final problem is the Kaiju fights sort of repeat themselves. Whether it be the two monsters throwing rocks back and forth more than once, or the exact same "flip" later on, it does seem a little out of place.

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

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