Poseidon Rex poster
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Poseidon Rex

4.020141h 16mMovieActionScience FictionHorror

Jackson Slate, famous treasure hunter, is out to find the legendary Lost Gold Of Cortez in the open waters off a secluded island in the Caribbean Sea. Using dynamite to blast his way through centuries of silt, new chasms are created…

DirectorMark L. Lester
WriterRafael Jordan
ProducersAnthony Fankhauser·Mark L. Lester

Where to watch

Amazon Prime VideoAmazon Prime VideoAmazon Prime Video with AdsAmazon Prime Video with Ads
Availability shown for United Kingdom · rights vary by country

Cast · Directed by Mark L. Lester

BKBrian Krause
Brian Krause
Jackson Slate
AMAnne McDaniels
Anne McDaniels
Sarah
SHSteven Helmkamp
Steven Helmkamp
Rod
CNCandice Nunes
Candice Nunes
Jane
BV
Berne Velasquez
Henry
GR
Gildon Roland
Tariq
PL
Pulu Lightburn
Rafa
GBGarrett Brawith
Garrett Brawith
Edwards
PC
Phillip Coc
Captain John
SC
Serapio Chun
First Mate
PH
Paul Hyde
Ajay

More from Brian Krause · Lead actor

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Charmed
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Mad Men
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The Closer
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Highway to Heaven
Highway to Heaven
1984 · 7.4
Walker, Texas Ranger
Walker, Texas Ranger
1993 · 7.0
Tales from the Crypt
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1989 · 8.0
Another World
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1964 · 5.5
See all fromBrian Krause

More from Anne McDaniels · Co-star actress

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More from Mark L. Lester · Director

Commando
Commando
1985 · 6.8
Showdown in Little Tokyo
Showdown in Little Tokyo
1991 · 6.4
Class of 1984
Class of 1984
1982 · 6.4
Class of 1999
Class of 1999
1990 · 6.0
Armed and Dangerous
Armed and Dangerous
1986 · 5.7
Bobbie Jo and the Outlaw
Bobbie Jo and the Outlaw
1976 · 4.6
Firestarter
Firestarter
1984 · 6.3
Dragons of Camelot
Dragons of Camelot
2014 · 4.5
Night of the Running Man
Night of the Running Man
1995 · 5.8
Stealing Candy
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2003 · 5.2
See all fromMark L. Lester

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Poseidon Rex — streaming FAQ

Which OTT platform streams Poseidon Rex?

Poseidon Rex is streaming on Amazon Prime Video in United Kingdom, and available to rent or buy on Amazon Video. It's not currently on Netflix.

Is Poseidon Rex on Netflix?

No, Poseidon Rex is not on Netflix in United Kingdom as of October 2026. It's currently on Amazon Prime Video.

Is Poseidon Rex on Amazon Prime Video?

Yes — Poseidon Rex is included with an Amazon Prime Video subscription in United Kingdom as of October 2026.

Where can I watch Poseidon Rex for free?

Poseidon Rex is available on Amazon Prime Video in United Kingdom, but you'll need an active subscription — there's no free option right now.