As of August 2026, The Giant Behemoth is a Science Fiction film from 1959 rated 6/10 — streaming now on Amazon Prime Video. Find out where to watch it below.
The Giant Behemoth poster

The Giant Behemoth

1959 80 min Science Fiction · Horror ⭐ 6/10 NR UK/US Co-Production

The Giant Behemoth, in Australia on Amazon Prime Video, treats its concept as the point, not the marketing hook. A tight runtime that never overstays its welcome. A 6/10 rating says what the writing already makes obvious: this one works. Gene Evans leads a cast that never lets the concept overwhelm the characters. There is no real reason to keep putting it off — it is right there on Amazon Prime Video.

The Giant Behemoth arrived without much fanfare and built its audience the hard way — through word of mouth. What makes The Giant Behemoth work is that the ideas never crowd out the people having them. 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. Gene Evans and André Morell lead a cast that keeps the bigger ideas grounded in something human. It was released in 1959. The world-building is meticulous enough to sustain multiple rewatches, with details early on that only make sense later. There is real craft here, even in the moments that do not fully land.

Sci-fi fans who want ideas alongside the spectacle will find The Giant Behemoth genuinely rewarding. It stands on its own even without an obvious comparison point. Best experienced as a single, sustained watch from start to finish. Gene Evans grounds the bigger ideas in something human. Once you are in, you will want to talk about it.

The Giant Behemoth was released in 1959, directed by Eugène Lourié. The full 80-minute film is available to watch now. Find exactly where it's streaming below, and TV Butler Pro makes it effortless to track your progress as you go. Just search the name, and Butler finds it instantly, tells you which service has it, and remembers exactly where you left off.

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📡 Where to Watch The Giant Behemoth

Australia

🎭 Cast of The Giant Behemoth

Gene Evans
Gene Evans
Steve Karnes
André Morell
André Morell
Prof. James Bickford
Leigh Madison
Leigh Madison
Jean Trevethan
John Turner
John Turner
John
Alastair Hunter
Alastair Hunter
Dr. C. A. Morris, the village doctor
Lloyd Lamble
Lloyd Lamble
Senior Admiral, at the Admiralty
Jack MacGowran
Jack MacGowran
Dr. Sampson, the paleontologist
Maurice Kaufmann
Maurice Kaufmann
Mini Submarine Officer
Henri Vidon
Henri Vidon
Tom Trevethan
Patrick Jordan
Patrick Jordan
Photo Lab Aide

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