The Neptune Factor poster
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The Neptune Factor

5.119731h 38mGMovieActionScience Fiction

When an underwater ocean lab is lost in a earthquake, an advanced submarine is sent down to find it and encounters terrible danger.

DirectorDaniel Petrie
WriterJack DeWitt
ProducersSandy Howard·Harold Greenberg

Where to watch

Not available in United Kingdom
Streaming in 5 other countries

The Neptune Factor isn't on any streaming service in United Kingdom right now, but it's available in Italy, San Marino, Spain, Switzerland and 1 more. Streaming rights are licensed per country.

Cast · Directed by Daniel Petrie

BGBen Gazzara
Ben Gazzara
Cmdr. Adrian Blake
WPWalter Pidgeon
Walter Pidgeon
Dr. Samuel Andrews
EBErnest Borgnine
Ernest Borgnine
Chief Diver Don MacKay
YMYvette Mimieux
Yvette Mimieux
Dr. Leah Jansen
DRDonnelly Rhodes
Donnelly Rhodes
Diver Bob Cousins
CWChris Wiggins
Chris Wiggins
Capt. Williams
MRMichael J. Reynolds
Michael J. Reynolds
Dr. Hal Hamilton
MWMark Walker
Mark Walker
Diver Dave Moulton
LCLeslie Carlson
Leslie Carlson
Brigs, Triton Radioman
SGStuart Gillard
Stuart Gillard
Diver Phil Bradley
EM
Ed McGibbon
Dr. Norton Shepherd
DR
David Renton
Warrant Officer

More from Ben Gazzara · Lead actor

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1959 · 7.8
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1969 · 6.8
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More from Walter Pidgeon · Co-star actor

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1957 · 7.7
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1961 · 5.7
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1956 · 6.2
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1964 · 7.0
Rawhide
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1959 · 7.3
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1963 · 6.2
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Checkmate
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1960 · 4.8
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1963 · 7.4
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More from Daniel Petrie · Director

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1967 · 6.8
Studio One
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1948 · 5.4
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1969 · 6.6
Medical Center
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The Defenders
The Defenders
1961 · 6.3
The Name of the Game
The Name of the Game
1968 · 7.0
The United States Steel Hour
The United States Steel Hour
1953 · 6.3
McMillan & Wife
McMillan & Wife
1971 · 6.9
Play of the Week
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1959 · 8.0
The Interns
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1970 · 7.0
See all fromDaniel Petrie

More like this

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1954 · 6.8
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1966 · 6.7
Godzilla
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2014 · 6.4
U-571
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Atlantis: The Lost Empire
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2001 · 7.1
Waterworld
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65
65
2023 · 5.9

The Neptune Factor — streaming FAQ

Which OTT platform streams The Neptune Factor?

The Neptune Factor isn't on any streaming service in United Kingdom yet, but it's available in Switzerland, Spain and Italy and other countries. Streaming rights differ by country — switch your country in the header to see where.

Is The Neptune Factor on Netflix?

No, The Neptune Factor is not on Netflix in United Kingdom as of November 2026.

Is The Neptune Factor on Amazon Prime Video?

No, The Neptune Factor isn't on Amazon Prime Video in United Kingdom right now.

Where can I watch The Neptune Factor for free?

The Neptune Factor isn't streaming in United Kingdom yet, so there's no way to watch it free at the moment.