Trailer
Summary
The US military is running a test for a special type of radio transmitter, to be used to communicate with submarines, in a deep system of underground caves in Central America.
Where to watch
Not streaming in United States. Where it is:
At a glance
Critics vs audiences
Only audience scores so far
Audiences 32GoodWatch 35
IMDb4.8
Audience score16%
Running time
1 h 28 min
A typical length for horror movies, −7 min on the typical 95
typical 9588Half of all horror movies run 88–103 min.
Reach
Streams in 2 countries
Released
1984
November 19, 1984
42 years ago
Genres
HorrorAdventureScience FictionLanguage
English
Original language
Made in
United Kingdom
United States
Rated
- PGUnited States
Better for older viewers: it's rated PG in the United States, and the viewing guide lists it for adults.
and 9 more22 people
- Robert PowellRupert 'Wolf' Wolfsen
- Timothy BottomsMajor Elbert Stevens
- Lisa BlountLeslie Peterson
- Anne HeywoodFrieda Shelley
- Richard JohnsonBen Gannon
- AWA.C. WearyLt. George Barwell
- Liam SullivanLemurian Elder
- Jackson BostwickHunter Prime
- RBRichard BeauchampSantos Arias
- Gary Carlos CervantesHector Lopez
Dick CurtisLemurian- WGWilliam GribbleSgt. Neumann
Carl SpurlockMajor Castillo- JLJason LaskayHunter Second
Tim PowellJim White- DADavid AveryAmerican Soldier
- RDRick DavisMercenary
- JSJanine Stamler JordanMercenary
- KMKenny MooreLemurian
- BSBrian StevensAmerican Soldier
Ned VaughnAmerican Soldier- PHPamela Hallisey HissLemurian (uncredited)
Directing · 1
- Don Sharp Director
Writing · 3
- Robert Vincent O'Neil Screenplay
- Christy Marx Screenplay
- Freddie Francis Story
Production · 7
- Mel Pearl Executive Producer
- Don Levin Executive Producer
- Sandy Howard Producer
- Robert D. Bailey Producer
- Jim Garrard Casting
- Jeffrey M. Sneller Associate Producer
Camera · 1
- Virgil L. Harper Director of Photography
Editing · 1
- John R. Bowey Editor
Sound · 4
- Michel Rubini Original Music Composer
- Denny Jaeger Original Music Composer
- Craig Felburg Sound Mixer
- David Lee Sound Mixer
Art · 1
- Stephen Marsh Art Direction
Costume & Make-Up · 1
- Pamela Hallisey Hiss Makeup Artist
Other crew · 5
- Ron Bledsoe Stunt Coordinator
- Clarke Coleman Stunts
- Doug Bledsoe Stunts
- Mike Bledsoe Stunts
- Bret Culpepper Special Effects
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