Skip to content

123MVIESWatch Your Favorite Movies Online

Home
Genres
Country
Movies
TV-Series
Top IMDb

Search movies or series

123movies

Movies
TV-Series
FAQ's
DMCA

Genres

Comedy
Drama
Action
Thriller
Western

Country

United States
Kazakhstan
Canada
Ireland
Iran

Subscribe

Subscribe to the 123Movies mailing list to receive updates on movies, tv-series and news of top movies.

Email address

123MVIESWatch Your Favorite Movies Online

123Movies - Watch Movies Online For Free and Download the latest movies without Registration.

Disclaimer: This site does not store any files on its server. All contents are provided by non-affiliated third parties.

This product uses the TMDB API but is not endorsed or certified by TMDB.

Copyright © 2026 123Movies. All Rights Reserved

Like and Share our website to support us.

Ads can be a pain, but they are our only way to maintain the server. Your patience is highly appreciated and we hope our service can be worth it.

The Giant Behemoth poster

The Giant Behemoth (1959)

5.860 votesNRHD1h 20mReleased

Sci-Fi
Horror

The biggest thing since creation!

Marine atomic tests cause changes in the ocean's ecosystem resulting in dangerous blobs of radiation and the resurrection of a dormant dinosaur which threatens London.

Released: Mar 3, 1959
Director: Eugène Lourié, Douglas Hickox
Writer: Eugène Lourié, Daniel James, Robert Abel, Alan J. Adler
Studio: Artistes Alliance Ltd., Diamond Pictures Corp.
Language: English, French
Country: United Kingdom, United States

Cast

Gene Evans
Steve Karnes
André Morell
Prof. James Bickford
Leigh Madison
Jean Trevethan
John Turner
John
Alastair Hunter
Dr. C. A. Morris, the village doctor
Lloyd Lamble
Senior Admiral, at the Admiralty
Jack MacGowran
Dr. Sampson, the paleontologist
Maurice Kaufmann
Mini Submarine Officer
Henri Vidon
Tom Trevethan
Patrick Jordan
Photo Lab Aide
Howard Lang
Naval Commader, at the "Valkyrie" wreck (uncredited)
Leonard Sachs
Dialogue Scientist at Conference (bit)
Ernest Blyth
Scientist at Conference (uncredited)
Neal Arden
TV Newscaster (uncredited)
Paul Beradi
Man Listening to Car Radio (uncredited)
Max Faulkner
PLA Radio Operator (uncredited)
Neil Hallett
Dr. Sampson's Helicopter Pilot (uncredited)
André Maranne
French Radio Officer (uncredited)

You May Also Like

X: The Unknown

X: The Unknown

Quatermass and the Pit

Quatermass and the Pit

Quatermass 2

Quatermass 2

Underwater

Underwater

Godzilla: King of the Monsters

Godzilla: King of the Monsters

Them!

Them!

Meg 2: The Trench

Meg 2: The Trench

The Meg

The Meg

Jurassic World: Fallen Kingdom

Jurassic World: Fallen Kingdom

4 Horsemen: Apocalypse

4 Horsemen: Apocalypse

Jurassic World Dominion

Jurassic World Dominion

Island of Terror

Island of Terror

The War of the Worlds

The War of the Worlds

Pacific Rim

Pacific Rim

Justice League Dark

Justice League Dark

2012

2012