

MovieHorrorScience Fiction
The Monster That Challenged the World
A new kind of terror to numb the nerves!
5.6(58)19571h 24m
Giants Mollusks are released from the earth by an earthquake and start killing people.
- Director
- Arnold Laven
- Writers
- David Duncan,Pat Fielder
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Cast

Tim Holt
Lt. Cmdr. John 'Twill' Twillinger

Audrey Dalton
Gail MacKenzie

Hans Conried
Dr. Jess Rogers

Barbara Darrow
Jody Simms

Max Showalter
Dr. Tad Johns
Harlan Warde
Lt. Robert 'Clem' Clemens

Gordon Jones
Sheriff Josh Peters

Mimi Gibson
Sandy MacKenzie

Marjorie Stapp
Connie Blake

Jody McCrea
Seaman Fred Johnson

Wallace Earl
Sally
Dennis McCarthy
George Blake (lab assistant)

Sarah Selby
Mrs. Simms

Milton Parsons
Lewis Clark Dobbs

Charles Tannen
Seaman Wyatt (Radioman)
Robert Benevides
Seaman Morty Beatty
John Carlyle
Monster Victim
John Close
Deputy Larry

William Forrest
Admiral Greenhouse
Gil Frye
Deputy Scotty

Joseph Hamilton
Other Lock Watchman

Charles Herbert
Boy with Morty's Cap

Byron Kane
Coroner Nate Brown
Ralph Littlefield
Gatekeeper
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Crew
Directing
- Arnold LavenDirector
- Maurice VaccarinoAssistant Director
- Paul StaderOther
Writing
- David DuncanStory
- Pat FielderScreenplay
Production
- Virginia MazzucaProduction Assistant
- Jules V. LevyProducer
- Kerwin CoughlinCasting
- Arthur GardnerProducer
Camera
- Lester WhiteDirector of Photography
- Scotty WelbourneUnderwater Director of Photography
- Paul EaglerOther
Editing
- John FaureEditor
Sound
- Joel MossSound Recordist
- Heinz RoemheldConductor
- Charles AlthouseSound Recordist
- Heinz RoemheldOriginal Music Composer
- Heinz RoemheldMusic Director
- B. F. RemmingtonSound Recordist
- Charles AlthouseSound Mixer
Art
- James Dowell VanceArt Direction
- Rudy ButlerSet Decoration
Costume & Make-Up
- Olga CollingsHairstylist
- Abe HabermanMakeup Artist
- Allen SloaneWardrobe Supervisor
Crew
- Augie LohmanSpecial Effects
- Ted HaworthOther
- Robert H. CrandallOther
- Norman BishopTechnical Supervisor