
Shin'ichi Sekizawa
Writer · Died November 19, 1992, aged 71 · Kyoto, Japan
Shinichi Sekizawa (June 2, 1921 – November 11, 1992) was a Japanese screenwriter known for his immense contributions to the original Godzilla series, providing screenplays and/or stories for 10 of the original 15 Showa films. He began his career in his native Kyoto, joining an association of manga cartoonists which included the anime pioneer Osamu Tezuka. His career would be interrupted when he was reluctantly drafted to fight in the South Pacific during WWII. Sekizawa would reignite his film career in 1946 when he joined Beehive Productions as an assistant director, demonstrating a talent for screenwriting when completing the screenplay for the film Profile of the City in a record four days. Later at Shintoho Studios he would direct the now considered lost film Fearful Attack of the Flying Saucers. His career at Toho began in 1958 working on Kihachi Okamoto's early films before eventually became the studio's go-to monster scripter after the immense success of his screenplay for Mothra. His kaiju screenplays for Ishiro Honda have been noted for their inventiveness, especially in his interplay of human drama blending with monster action and characterization. His lighthearted approach was contrasted to that of Takeshi Kimura, whose scripts had a darker, more cynical sensibility. Sekizawa's talents were not limited to science fiction, with his output in the 60s being as many as six screenplays a year in genres such as salaryman comedies and war movies as well as TV shows such as the original Ultraman. While Sekizawa enjoyed writing monster movies, he would eventually become tired of the Godzilla series and moved on to scripting for animating features while continuing his career as a lyricist. He was also an aficionado of model trains and published numerous publications on the subject. Before his death he was awarded a Purple ribbon by the Japanese government due to his immense artistic and cultural contributions.
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Biography from TMDB.
- June 2, 1921
- November 19, 1992 (aged 71)
- Kyoto, Japan
- Writer
- 26 on MovieCove · 82 credits in all
What are Shin'ichi Sekizawa's films like?
Across their 22 MovieCove titles with a thematic analysis, their films lean Survival and Power.
Genres
Their MovieCove films by primary genre. The badge is the typical Midcredits score of the genre's films, the median percentile; an up arrow marks a genre at or above their average across these genres.
Themes
What they feel like to watch
Ironic 0 · Wry 1 · Earnest 21
A split, not a type: Light 12 · Serious 6 · Dark 4
Grounded 2 · Stylized 10 · Heightened 10
A split, not a type: Gentle 3 · Charged 7 · Intense 12
Steady 9 · Shifting 12 · Whiplash 1
Straight-faced 9 · Some laughs 10 · Funny 3
Slow burn 7 · Even-paced 13 · Relentless 2
Casual 13 · Engaged 9 · Full focus 0
Easy watch 17 · Affecting 5 · Heavy 0
Resolved 19 · Open-ended 2 · Ambiguous 1
Moods and endings
- Happy15
- Bittersweet6
- Ambiguous1
AI-generated from each title's plot synopsis and cast list, with extra plot summaries, reviews and Parents Guide notes for titles the model may not know, and the model's own knowledge of the ones it recognizes. Only analyzed titles count, so this covers part of the filmography; the feel axes count films only for now.
Where can I watch Shin'ichi Sekizawa's films?
As of October 24, 2026, 19 of their 26 MovieCove titles stream on a subscription or free service, most on The Criterion Channel (13).
- The Return of Godzilla (1984) · writer
- Godzilla vs. Biollante (1989) · writer
- Mothra vs. Godzilla (1964) · writer
- Ghidorah: The Three-Headed Monster (1964) · writer
- Godzilla and Mothra: The Battle for Earth (1992) · writer
- Invasion of Astro-Monster (1965) · writer
- Atragon (1963) · writer
- Frankenstein vs. Baragon (1965) · writer
- Godzilla vs. Gigan (1972) · writer
- Ebirah, Horror of the Deep (1966) · writer
- Son of Godzilla (1967) · writer
- Godzilla vs. Megalon (1973) · writer
- +1 more
- The Return of Godzilla (1984) · writer
- Godzilla vs. Biollante (1989) · writer
- Mothra vs. Godzilla (1964) · writer
- Ghidorah: The Three-Headed Monster (1964) · writer
- Godzilla vs. Mechagodzilla (1974) · writer
- Invasion of Astro-Monster (1965) · writer
- Godzilla vs. Gigan (1972) · writer
- Ebirah, Horror of the Deep (1966) · writer
- Son of Godzilla (1967) · writer
- Godzilla vs. Megalon (1973) · writer
- All Monsters Attack (1969) · writer
- Ultraman: A Special Effects Fantasy Series (1966) · writer · free
- Mothra (1961) · writer · free
- Invasion of Astro-Monster (1965) · writer · free
- Atragon (1963) · writer · free
- Battle in Outer Space (1959) · writer · free
- Ebirah, Horror of the Deep (1966) · writer · free
- All Monsters Attack (1969) · writer · free
Subscription and free streaming for Shin'ichi Sekizawa's titles on MovieCove; rent and buy are not counted. Titles are listed by Midcredits score, highest first, at most 12 per service; a dashed chip is a producer credit or a minor one, such as a thanks. A service opens the browse page, which counts movies only, so its number can differ.
Filmography
82 credits, 26 with a MovieCove page.

Rebirth of Mothra II(1997)
Midcredits score: 20th percentile of all films
Rebirth of Mothra(1996)
Midcredits score: 40th percentile of all films
Super Atragon - Part II (not in the MovieCove catalog yet)(1996)

Super Atragon - Part I (not in the MovieCove catalog yet)(1995)

Ultraman vs. Kamen Rider (not in the MovieCove catalog yet)(1993)
Midcredits score: 55th percentile of all films
Godzilla vs. Biollante(1989)
Midcredits score: 71st percentile of all films
Gunhed(1989)
Midcredits score: 29th percentile of all films
Mighty Jack(1968)
Midcredits score: 1st percentile of all films
Godzilla 1985(1985)
Midcredits score: 47th percentile of all films
The Return of Godzilla(1984)
Midcredits score: 77th percentile of all films
Midcredits score: 59th percentile of all films
Godzilla vs. Megalon(1973)
Midcredits score: 21st percentile of all films
Godzilla vs. Gigan(1972)
Midcredits score: 35th percentile of all films
All Monsters Attack(1969)
Midcredits score: 3rd percentile of all films
Latitude Zero(1969)
Midcredits score: 43rd percentile of all films
Motta, the Flying Dracula Monster (not in the MovieCove catalog yet)(1969)

Homeless Ninja Trick Book: Lose in All Directions (not in the MovieCove catalog yet)(1968)

Agon: The Atomic Dragon (not in the MovieCove catalog yet)(1968)

Phantom Monster Agon (not in the MovieCove catalog yet)(1968)

Son of Godzilla(1967)
Midcredits score: 22nd percentile of all films
Ultraman: Monster Movie Feature (not in the MovieCove catalog yet)(1967)

Jack and the Witch (not in the MovieCove catalog yet)(1967)

Do Your Best! Godzilla (not in the MovieCove catalog yet)(1967)

The Killing Bottle (not in the MovieCove catalog yet)(1967)
Midcredits score: 30th percentile of all films
Midcredits score: 88th percentile of all shows
The Mad Atlantic (not in the MovieCove catalog yet)(1966)

Zero Fighter (not in the MovieCove catalog yet)(1966)
Midcredits score: 53rd percentile of all films
Homeless Ninja Trick Book (not in the MovieCove catalog yet)(1965)

Gulliver's Travels Beyond the Moon (not in the MovieCove catalog yet)(1965)

Frankenstein vs. Baragon(1965)
Midcredits score: 36th percentile of all films
Midcredits score: 67th percentile of all films
A Keg of Powder (not in the MovieCove catalog yet)(1964)

Dogora (not in the MovieCove catalog yet)(1964)

Ant Hell War (not in the MovieCove catalog yet)(1964)

Mothra vs. Godzilla(1964)
Midcredits score: 68th percentile of all films
Atragon(1963)
Midcredits score: 37th percentile of all films
Samurai Pirate (not in the MovieCove catalog yet)(1963)

Operation Mad Dog (not in the MovieCove catalog yet)(1963)

King Kong vs. Godzilla(1963)
Midcredits score: 35th percentile of all films
Warring Clans (not in the MovieCove catalog yet)(1963)

Attack Squadron (not in the MovieCove catalog yet)(1963)

Varan the Unbelievable(1962)
Midcredits score: 6th percentile of all films
Operation Enemy Fort (not in the MovieCove catalog yet)(1962)

Local Reporter (not in the MovieCove catalog yet)(1962)

King Kong vs. Godzilla(1962)
Midcredits score: 48th percentile of all films
The Crimson Sky (not in the MovieCove catalog yet)(1962)
Ganpā kachō (not in the MovieCove catalog yet)(1961)

Hiroshi Moriya Sadogasa: Thank You, Sandogasa (not in the MovieCove catalog yet)(1961)

Mothra(1961)
Midcredits score: 70th percentile of all films
Hiroshi Moriya Sandogasa: I Want to Weep (not in the MovieCove catalog yet)(1961)

Blueprint of Murder (not in the MovieCove catalog yet)(1961)

Adventures of Princess Anmitsu (not in the MovieCove catalog yet)(1960)

Westward Desperado (not in the MovieCove catalog yet)(1960)

University Bandits (not in the MovieCove catalog yet)(1960)

The Secret of the Telegian (not in the MovieCove catalog yet)(1960)

Maboroshi Tantei: Chiteijin Shūrai (not in the MovieCove catalog yet)(1960)

Take Aim at the Police Van (not in the MovieCove catalog yet)(1960)

The Last Gunfight (not in the MovieCove catalog yet)(1960)

Battle in Outer Space(1959)
Midcredits score: 31st percentile of all films
Gambling Youth (not in the MovieCove catalog yet)(1959)

Mariko's Autobiography: Flowing Constellation (not in the MovieCove catalog yet)(1959)

A Young Boss Tries Really Hard (not in the MovieCove catalog yet)(1959)

The Big Boss (not in the MovieCove catalog yet)(1959)

The Young Boss is Third Generation (not in the MovieCove catalog yet)(1958)
Mermaids and Sea Robbers (not in the MovieCove catalog yet)(1958)

Varan (not in the MovieCove catalog yet)(1958)

Tomboy Samurai (not in the MovieCove catalog yet)(1958)

Shōjo to fūsen (not in the MovieCove catalog yet)(1958)

Queen of Asia (not in the MovieCove catalog yet)(1957)

A Texan in Tokyo (not in the MovieCove catalog yet)(1957)

Tokyo is a Fine Place (not in the MovieCove catalog yet)(1957)

Devil Princess’ Beauty Competition (not in the MovieCove catalog yet)(1956)

A Man's Flower Path (not in the MovieCove catalog yet)(1956)

Fearful Attack of the Flying Saucers (not in the MovieCove catalog yet)(1956)

Tokyo Profile (not in the MovieCove catalog yet)(1953)

Children of the Great Buddha (not in the MovieCove catalog yet)(1952)

Children of the Beehive: What Happened Next (not in the MovieCove catalog yet)(1951)

娘十八嘘つき時代 (not in the MovieCove catalog yet)(1949)

Tomorrow Will Be Fine Weather (not in the MovieCove catalog yet)(1948)
Career shape
A full career of 78 titles from 1948 to 1997.

Biggest box office
Godzilla 1985 (1985)

Highest rated
The Return of Godzilla (1984)

Most popular right now
King Kong vs. Godzilla (1962)
Counts from TMDB across their full career, self appearances out; a title counts in every role they held on it. The ring is the typical Midcredits score (the median percentile) of the role's titles that are on MovieCove, shown from 5 scored.
How do Shin'ichi Sekizawa's films land?
Their typical MovieCove film has a Midcredits score in the 37th percentile, the median of all 25; across their 22 films with reception data, the typical film sits in the 43rd percentile for acclaim.
- 75th and up2
- 50th to 74th7
- 25th to 49th11
- Below 25th6
Shape of the crowd
13 of their 26 titles are Mixed.
- Universally Panned2
- Crowd Pleaser10
- Broadly Agreed1
- Mixed13
Reviewers score the dialogue 35/100 and the plot and story 40/100 in their films, across 22 reviewed titles. The element that speaks to their work as a writer.
Percentiles are each film's standing among all films on MovieCove; the typical film is the median, so one outlier cannot drag it. Percentiles and reviewer scores count the films IMDb credits them on, for now; the Midcredits score bands, the shape of the crowd and the two cards count their MovieCove titles, shows included (a show ranked among shows), appearances as themselves left out. A descriptor is the shape of a title's IMDb rating distribution against the catalog; "most divisive" needs a spread wider than half of all titles, and a card names only a principal credit: a craft role, and on a show a crew role or a run of episodes, never a courtesy credit or a one-off guest spot.
Is Shin'ichi Sekizawa's work okay for kids?
Across up to 11 MovieCove titles with content scores, sex & nudity runs lighter than most films.
Severity 0–100 from the Content Guide. Categories with under 10 votes on a title are not counted. The band's colour is the severity of their median, named beside it.
Who does Shin'ichi Sekizawa work with?
People who share at least 2 of Shin'ichi Sekizawa's MovieCove titles, grouped by what they did on them; Tomoyuki Tanaka shares the most, 20.
Directors
- Ishirō HondaShared titles: Godzilla 1985 (1985), Godzilla vs. Megalon (1973), Godzilla vs. Gigan (1972), All Monsters Attack (1969), Latitude Zero (1969), Son of Godzilla (1967), Ebirah, Horror of the Deep (1966), Frankenstein vs. Baragon (1965), Invasion of Astro-Monster (1965), Ghidorah: The Three-Headed Monster (1964), Mothra vs. Godzilla (1964), Atragon (1963) and 5 moreSee newest 12 of 17 shared titles with Ishirō Honda

- Jun FukudaShared titles: Godzilla vs. Mechagodzilla (1974), Godzilla vs. Megalon (1973), Godzilla vs. Gigan (1972), All Monsters Attack (1969), Son of Godzilla (1967), Ebirah, Horror of the Deep (1966)See all 6 shared titles with Jun Fukuda

- Kōji HashimotoShared titles: Godzilla vs. Biollante (1989), Godzilla 1985 (1985), The Return of Godzilla (1984)See all 3 shared titles with Kōji Hashimoto

- Shūe MatsubayashiShared titles: Godzilla 1985 (1985), Godzilla vs. Gigan (1972), Atragon (1963)See all 3 shared titles with Shūe Matsubayashi

Writers
- Hiroyasu YamauraShared titles: Godzilla 1985 (1985), The Return of Godzilla (1984), Godzilla vs. Mechagodzilla (1974)See all 3 shared titles with Hiroyasu Yamaura

- Takeshi KimuraShared titles: Godzilla vs. Megalon (1973), Godzilla vs. Gigan (1972), Frankenstein vs. Baragon (1965)See all 3 shared titles with Takeshi Kimura

- Tomoyuki TanakaShared titles: Godzilla vs. Biollante (1989), Gunhed (1989), Godzilla 1985 (1985), The Return of Godzilla (1984), Godzilla vs. Mechagodzilla (1974), Godzilla vs. Megalon (1973), Godzilla vs. Gigan (1972), All Monsters Attack (1969), Latitude Zero (1969), Son of Godzilla (1967), Ebirah, Horror of the Deep (1966), Frankenstein vs. Baragon (1965) and 8 moreSee newest 12 of 20 shared titles with Tomoyuki Tanaka

- Reuben BercovitchShared titles: Godzilla 1985 (1985), Frankenstein vs. Baragon (1965), Invasion of Astro-Monster (1965)See all 3 shared titles with Reuben Bercovitch

Actors
- Akihiko HirataShared titles: Godzilla vs. Mechagodzilla (1974), Latitude Zero (1969), Son of Godzilla (1967), Ebirah, Horror of the Deep (1966), Ghidorah: The Three-Headed Monster (1964), Atragon (1963), King Kong vs. Godzilla (1963), King Kong vs. Godzilla (1962), Varan the Unbelievable (1962), Mothra (1961)See all 10 shared titles with Akihiko Hirata

- Kenji SaharaShared titles: All Monsters Attack (1969), Son of Godzilla (1967), Frankenstein vs. Baragon (1965), Mothra vs. Godzilla (1964), Atragon (1963), King Kong vs. Godzilla (1963), King Kong vs. Godzilla (1962)See all 7 shared titles with Kenji Sahara

- Jun TazakiShared titles: Ebirah, Horror of the Deep (1966), Frankenstein vs. Baragon (1965), Invasion of Astro-Monster (1965), Mothra vs. Godzilla (1964), Atragon (1963), King Kong vs. Godzilla (1963), King Kong vs. Godzilla (1962)See all 7 shared titles with Jun Tazaki

- Hiroshi KoizumiShared titles: Godzilla vs. Mechagodzilla (1974), Ghidorah: The Three-Headed Monster (1964), Mothra vs. Godzilla (1964), Atragon (1963), Mothra (1961)See all 5 shared titles with Hiroshi Koizumi

Composers, cinematographers and editors
- Akira IfukubeShared titles: Godzilla vs. Gigan (1972), Latitude Zero (1969), Frankenstein vs. Baragon (1965), Invasion of Astro-Monster (1965), Ghidorah: The Three-Headed Monster (1964), Mothra vs. Godzilla (1964), Atragon (1963), King Kong vs. Godzilla (1963), King Kong vs. Godzilla (1962), Varan the Unbelievable (1962), Battle in Outer Space (1959)See all 11 shared titles with Akira Ifukube

- Hajime KoizumiShared titles: Frankenstein vs. Baragon (1965), Invasion of Astro-Monster (1965), Ghidorah: The Three-Headed Monster (1964), Mothra vs. Godzilla (1964), Atragon (1963), King Kong vs. Godzilla (1963), King Kong vs. Godzilla (1962), Mothra (1961), Battle in Outer Space (1959)See all 9 shared titles with Hajime Koizumi

- Ryōhei FujiiShared titles: Son of Godzilla (1967), Ebirah, Horror of the Deep (1966), Frankenstein vs. Baragon (1965), Invasion of Astro-Monster (1965), Ghidorah: The Three-Headed Monster (1964), Mothra vs. Godzilla (1964), Atragon (1963)See all 7 shared titles with Ryōhei Fujii
- Michiko IkedaShared titles: Godzilla vs. Biollante (1989), Godzilla vs. Mechagodzilla (1974), Godzilla vs. Megalon (1973)See all 3 shared titles with Michiko Ikeda
Producers
- Henry G. SapersteinShared titles: All Monsters Attack (1969), Frankenstein vs. Baragon (1965), Invasion of Astro-Monster (1965)See all 3 shared titles with Henry G. Saperstein

- Fumio TanakaShared titles: Godzilla 1985 (1985), The Return of Godzilla (1984)See all 2 shared titles with Fumio Tanaka
- Kiyomi KanazawaShared titles: Godzilla 1985 (1985), The Return of Godzilla (1984)See all 2 shared titles with Kiyomi Kanazawa
- Norio HayashiShared titles: Godzilla 1985 (1985), The Return of Godzilla (1984)See all 2 shared titles with Norio Hayashi
