Invasion of the Neptune Men - Where to Watch

Now, before we get into the full breakdown of how you can watch 'Invasion of the Neptune Men' right now, here are some key details about the Toei Company adventure flick. Invasion of the Neptune Men starring Sonny Chiba, Shinjirō Ehara, Ryuko Mizukami, Mitsue Komiya has a Not Rated rating, a runtime of about 1 hr 14 min. The movie received a user score of 28/100 on TMDb, which was calculated from reviews from 27 registered users.

Want the short version of the plot? Here's the plot: "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."

Looking to see 'Invasion of the Neptune Men' from the comfort of your living room? Searching for a streaming service to buy, rent, download, or watch the Koji Ota-directed movie via subscription can be a huge pain, so we here at Moviefone want to take the pressure off.

We've listed a number of streaming and cable services - including rental, purchase, and subscription alternatives - along with the availability of 'Invasion of the Neptune Men' on each platform when they are available. 'Invasion of the Neptune Men' is currently available to rent, purchase, or stream via subscription on AMC+, AMC+ Amazon Channel, The Roku Channel, Prime Video, AMC Plus Apple TV Channel , Plex Channel, Shout! Factory TV, Tubi TV, Plex, and Pluto TV in the US.