The oceans encompass most of the planet, but explorers have only scratched the surface of what lies beneath.

What lurks below in the murky depths of the sea has an innately unsettling quality.

The pair fight for survival with limited oxygen and the deadly predators circling.

Collage with stills from The Cave, The Shallows, and The Meg

Image by Federico Napoli

The cinematography of the diving thrillerSanctumdoes just that.

Audiences will recognize cinematic icon and deep-diving enthusiastJames Cameronas executive producer.

WhereSanctumsucceeds is in its ability to provoke the audience to ask, “What would you do?”

Kate and Lisa stand in wetsuits looking through the doorway from the bridge of the diving ship

Image via Entertainment Studios Motion Pictures

Towering waves and relentless pounding rain are enough to invoke a fear of the water.

This under-the-sonar thriller was a hit with critics but undersold to audiences.

It’s enough for any viewer to approach the sea with trepidation.

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The film is more of a work of mind-bending science fiction than a conventional horror film.

Despite its financial failure, the film deserves to be viewed by and unnerve a larger audience.

Things only get worse for the American couple stuck at sea as sharks surround them and exhaustion sets in.

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The ensuing chaos results in plenty of carnage for the ship as the monster unleashes a few surprises.

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Two cave-diving men in full scuba gear bob at the water’s surface inside a cavern

Image via Universal Pictures

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Survivors grimy from their journey to freedom in ‘The Poseidon Adventure’

Image via 20th Century Fox

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George Clooney and Mark Wahlberg in The Perfect Storm (2000)

Image via Warner Bros.

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A weary man places his hands on a pile of gold bars

Image via Focus Features

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A rugged woman with blonde buzzed hair examines a futuristic display of screens and equipment

Image via 20th Century Fox

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Blanchard Ryan and Daniel Travis as Susan and Daniel, looking terrified as sharks swim past in Open Water

Image via Lions Gate Films

Movie

Jaws