The Abyss, Exploring the Unknown Sea

Groundbreaking documentary which follows a Japanese-led team of scientists as they attempt to shed light on the mysterious world of deep sea sharks. Only 50 specimens of the newly discovered 'megamouth' have ever been sighted. Over four years, scientists and film crews voyaged in midget submarines into the depths of Suruga Bay and Sagami Bay to film them. Prehistoric 'living fossil' sharks such as bluntnose sixgill sharks, goblin sharks and frilled sharks also lurk in the depths. As part of the investigation, a sperm whale carcass was placed at the bottom of the sea to attract these sharks, which were then studied and observed from the submersible vessels. Revealing in detail the previously unknown behaviour of deep sea sharks, the film unravels another of the intriguing mysteries of our planet's biodiversity.

Described as being a film about determination, danger and the ocean’s greatest depths, James Cameron's "Deepsea Challenge 3D" tells the story of Cameron’s journey to fulfill his boyhood dream of becoming an explorer. The movie offers a unique insight into Cameron's world as he makes that dream reality – and makes history – by becoming the first person to travel solo to the deepest point on the planet.

A journey into the extraordinary life and legacy of pioneering marine biologist Edie Widder.

Deep Blue is a major documentary feature film shot by the BBC Natural History Unit. An epic cinematic rollercoaster ride for all ages, Deep Blue uses amazing footage to tell us the story of our oceans and the life they support.

Sea life in a whole new way. Deep Sea 3D, an underwater adventure from the filmmakers behind the successful IMAX® 3D film Into the Deep, transports audiences deep below the ocean surface. Through the magic of IMAX®; and IMAX 3D, moviegoers will swim with some of the planets most unique, dangerous and colorful creatures, and understand this inspiring underworld.

James Cameron teams up with NASA scientists to explore the Mid-Ocean Ridge, a submerged chain of mountains that band the Earth and are home to some of the planet's most unique life forms.

The same submarine which successfully captured the world's first moving images of a giant squid in its natural habitat is used for exploring the deep sea cliffs off the coast of New Guinea. The team encounters true living fossil species one after another. Join this exciting deep sea adventure!

Whether it's the biggest great white, the most photographed tiger shark, or the shark known for jumping 100 feet up out of the water, we're diving into the stories of the greatest shark stars of all time.

OceanGate's Titan tourist submersible imploded in 2023 on a deep-sea dive to the Titanic. This documentary details how a bold vision ended in tragedy.

Bonded by their love of freediving, a record-setting champion and a heroic safety diver try to make history with a remarkable feat, ready to risk it all.

Alien Sharks: Return To The Abyss

In the deep ocean, life is divided between very different worlds inhabited by weird and wonderful deep sea creatures. In this film, we delve into the Midnight Zone and the Twilight Zone, where anglerfish, giant sharks, and bioluminescent wonders are found traversing the void.

Sanctuaries in the Dark, a documentary about the deep sea. Sixgill sharks, ghost sharks (chimaeras), big-finned squid (Magnapinna), telescope octopuses, siphonophores (Bathyphysa), drifting jellyfish, and the silent abyss cleaning team: sea cucumbers and giant isopods. Visit hydrothermal vents, where chemosynthetic microbes feed oases of life with giant tubeworms (Riftia pachyptila) and Pompeii worms; glide over coral gardens of seamounts and ancient schools of sponges; watch as wooden and whale waterfalls transform darkness into cities of life; and pause at octopus farms, heated by gentle filtrations. This film features only real footage of deep-sea creatures, filmed by NOAA's incredible ocean exploration institutes and the Schmidt Oceanographic Institute.

Acid Horizon follows marine ecologist Dr. Erik Cordes on a harrowing deep-sea expedition to track down the "supercoral", a strain of the deep-water coral Lophelia pertusa that seems to possess the unique genetic capability to thrive in a low-pH ocean.

An expedition looks into whether Titanic's hull had a construction design flaw that caused her to break apart. Featuring advanced CGI technology, archive documents and photographs, as well as footage from the modern-day History(R) expeditions, "Titanic's Achilles Heel" is a remarkable journey into the ongoing legacy of a ship that continues to capture the world's attention.

Explore the mysterious giant rings of the Mediterranean, buried at a depth of 120m, with the world-famous Laurent Ballesta, world-renowned diver and his team, to understand the origin of these unique and unknown formations.

The hunt for a mythic animal once thought to have been extinct for 65 million years: the coelacanth. It can be found 120 metres beneath the ocean off the wild coast of South Africa. French scientists and South African scientists teamed up with experienced Trimix divers, including Peter Timm, who discovered the coelacanths in Sodwana Bay in 2000 and award-winning underwater photographer Mr Laurent Ballesta and his advanced technical dive team to bring you this eye-opening documentary. Click on the play button above to watch a preview.

David Attenborough looks into the ocean's depths to discuss the coelacanth, a primeval fish hidden for 400 million years. Its mysterious movements reveal vital clues about life's journey from sea to land, as well as secrets of evolution and survival.

From shipwrecks to seafloor species, NOAA oceanic scientists work to unlock the secrets of our oceans.

Deep Ocean: Giants of the Antarctic Deep