

The Neptune Factor
The most fantastic undersea odyssey ever filmed.
When an underwater ocean lab is lost in a earthquake, an advanced submarine is sent down to find it and encounters terrible danger.
TMDB
5.1/10
56 votes
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Not rated yet
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- Status
- Released
- Budget
- $2.5M
- Box office
- —
- Language
- English
- rescue
- monster
- submarine
- ocean
- earthquake
- laboratory
- disaster
- underwater
- oceanography
- canuxploitation
- sea creature
- giant fish
Top billed cast













Behind the camera
Where to watch
All optionsAvailability for United States. Provided by JustWatch through the TMDB API.
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Release dates
United StatesUS
- TheatricalG3 Aug 1973
CanadaCA
- Theatrical26 Jun 1973
GermanyDE
- Theatrical129 Feb 1974
JapanJP
- TheatricalG25 Aug 1973
Frequently asked questions
The Neptune Factor was released on 26 June 1973.
Audience reviews
2- M3/10
Monkshood
6/15/2017
Take one toy submarine, add some fishing line to the top of it and have it "explore" your aquarium. This is sadly the extent of the action in this C- movie. It is a huge waste of the talented actors and was an even larger waste of my time in watching it. I have no problem with campy movies, and this was the reason I watched this flick, but Jason and the Argonauts this ain't. Very slow pacing along with the aforeme…
- C4/10
CinemaSerf
11/14/2022
I thought that the combination of Walter Pidgeon and Ernest Borgnine might bely my initial thoughts that this would just be another mediocre TV adventure movie. Sadly not, for thats exactly what it is. A submarine descends to the unknown depths of the ocean to rescue the crew of a lab that has been damaged in an earthquake. I say adventure, but that is really stretching the point: it's a glacially slow moving feature…
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