Invasion of the Neptune Men
宇宙快速船
We checked 8 streaming services in India on 06 Jun 2026 at 03:43 IST
About
Astronomer Shinichi Tachibana has a secret identity as the superhero "Iron Sharp" and is well beloved by children. When they are attacked by a group of metallic aliens, Iron Sharp drives the aliens away. The resourceful Tachibana helps develop an electric barrier to block the aliens from coming to the Earth. After several losses by the aliens, they announce that they will invade the Earth, throwing the world into a state of panic.
Cast
Sonny Chiba
as Tachibana - Scientist / Space Chief
Shinjirō Ehara
as
Ryuko Mizukami
as Tanigawa Yoko
Mitsue Komiya
as
Seiichirō Kameishi
as
Shiro Okamoto
as
Rinichi Yamamoto
as
Kappei Matsumoto
as Tanigawa Hiroshi
Takashi Kanda
as
Ken Sudo
as
Junji Masuda
as
Koji Sahara
as Garrison Chief Mikami
Harold Conway
as Washington Broadcast Station Chief
Yuji Kitamine
as
Tadashi Minamikawa
as
Kōji Sekiyama
as
Gōzō Sōma
as
Akikane Sawa
as
Masazumi Okabe
as
Shirō Ōki
as
Where does Invasion of the Neptune Men rank today?
Invasion of the Neptune Men is #10000 on the CineFlixo Daily Streaming Charts today.
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Watch Invasion of the Neptune Men Online Free in HD
Looking for a place to watch Invasion of the Neptune Men online for free? You've landed on the right page. Invasion of the Neptune Men is a talked-about Japonés science fiction, action, and adventure movie from 1961 that you can stream right now on CineFlixo in high quality, no signup required.
About Invasion of the Neptune Men
Astronomer Shinichi Tachibana has a secret identity as the superhero "Iron Sharp" and is well beloved by children. When they are attacked by a group of metallic aliens, Iron Sharp drives the aliens away. The resourceful Tachibana helps develop an electric barrier to block the aliens from coming to the Earth. After several losses by the aliens, they announce that they will invade the Earth, throwing the world into a state of panic. Running 74 minutes.
Invasion of the Neptune Men Cast and Characters
The cast features Sonny Chiba (as Tachibana - Scientist / Space Chief), Shinjirō Ehara, Ryuko Mizukami (as Tanigawa Yoko), Mitsue Komiya, and Seiichirō Kameishi. Their performances are a major reason Invasion of the Neptune Men has built such a passionate audience.
Where to Watch Invasion of the Neptune Men Online
CineFlixo lets you stream Invasion of the Neptune Men online free, instantly, in HD. There's nothing to install — open the page, hit play, done. Works perfectly on Jio, Airtel, Vi networks across India and on slow mobile data thanks to our adaptive video pipeline.
▶ Watch Invasion of the Neptune Men NowWhy People Are Watching Invasion of the Neptune Men
Invasion of the Neptune Men flies under the radar but it deserves your attention. What makes it work is action sequences that don't feel cheap and world-building that respects the audience's intelligence. If you enjoy Japonés storytelling that doesn't follow the same tired beats, this is the kind of film you'll end up recommending to friends.
Frequently Asked Questions about Invasion of the Neptune Men
Where can I watch Invasion of the Neptune Men online for free?
You can watch Invasion of the Neptune Men online free on CineFlixo. Just open the page and hit play — no signup, no subscription, full HD streaming on phone, tablet, or desktop.
How long is Invasion of the Neptune Men?
Invasion of the Neptune Men runs for 74 minutes (about 1.2 hour).
Is Invasion of the Neptune Men good? What's the rating?
Invasion of the Neptune Men holds a 3.1/10 rating based on 28 reviews — a niche pick worth checking out.
Who is in the cast of Invasion of the Neptune Men?
The main cast includes Sonny Chiba, Shinjirō Ehara, Ryuko Mizukami, and Mitsue Komiya, plus a strong supporting ensemble.
Is Invasion of the Neptune Men available in Japonés?
Yes — Invasion of the Neptune Men was originally produced in Japonés and that's the version you'll stream here on CineFlixo. English subtitles are provided when available.
When was Invasion of the Neptune Men released?
Invasion of the Neptune Men was released in 1961.
Do I need an account to watch Invasion of the Neptune Men on CineFlixo?
No. CineFlixo is free and you can watch Invasion of the Neptune Men without creating an account. Sign-up is optional — only useful if you want a personal Watchlist or to comment on episodes.
Similar Movies You Might Like
If you enjoyed Invasion of the Neptune Men, check out Signs, Doctor Who: The Dalek Invasion of Earth, Doctor Who: Terror of the Zygons, Destroy All Monsters, and Frankenstein Meets the Space Monster.
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Frequently Asked Questions
Common questions about Invasion of the Neptune Men
Where can I watch Invasion of the Neptune Men for free?
You can watch Invasion of the Neptune Men (1961) online for free on CineFlixo. Just click "Watch Free" on this page to start streaming instantly — no account, subscription, or downloads required.
What is Invasion of the Neptune Men about?
Invasion of the Neptune Men is a Science Fiction/Action film. Astronomer Shinichi Tachibana has a secret identity as the superhero "Iron Sharp" and is well beloved by children. When they are attacked by a group of metallic aliens, Iron Sharp drives the aliens away. The resourceful Tachibana helps develop an electric barrier to block the aliens from coming to the Earth. After several losses by the aliens, they announce that they will invade the Earth, throwing the world into a state of panic.
When was Invasion of the Neptune Men released?
Invasion of the Neptune Men was released on July 19, 1961. It has a runtime of 1h 14m. The film was produced by Toei Company.
Who stars in Invasion of the Neptune Men?
Invasion of the Neptune Men stars Sonny Chiba, Shinjirō Ehara, Ryuko Mizukami and Mitsue Komiya. The full cast list is available in the Cast section above.
Is Invasion of the Neptune Men available in HD?
Yes, Invasion of the Neptune Men is available to stream in high definition (HD) on CineFlixo. Our players automatically deliver the best quality your connection supports — no extra setup needed.