Art & Culture · Natural History Film

Blue Planet III Premieres on BBC One, With David Attenborough Narrating at 100

The BBC’s six-part ocean series arrives 25 years after the original, with new camera technology, a pledge of no generative AI, and a final episode on what it will take to protect the seas.

By SEVENSEAS Media | Ocean Conservation

Blue Planet III began on BBC One and iPlayer on Sunday 1 November, a quarter of a century after the first Blue Planet and nine years after Blue Planet II. Sir David Attenborough, who turned 100 in May, narrates all six hour-long episodes. The series was made by the BBC Studios Natural History Unit in partnership with The Open University, co-produced with ZDF and France Télévisions and in association with Greece’s Skai TV, and according to its producers it took four years to film across five oceans.

Viewers in the United States will wait longer. AMC Global Media has scheduled the series for BBC America and AMC+ from Saturday 23 January 2027, with an episode each week after that.

Five habitats, then the future

Each of the first five episodes takes one habitat: Tropical Seas, Open Ocean, Seasonal Seas, Polar Waters and The Deep. The sixth, Future Seas, turns to what is needed to protect them, according to the University of Southampton, whose marine biologists advised on several episodes.

The image the BBC chose to announce the series in May was a tawny nurse shark gliding through a shoal of sardines. It is a species the IUCN lists as Vulnerable, with some subpopulations already depleted or gone.

Cloudier footage, on purpose

The production’s most unusual decision has little to do with animals. Its producers told the Guardian they deliberately kept murkier, less polished shots in the edit so viewers could trust that what they were seeing was real rather than AI-generated. Executive producer Elizabeth White said sequences with plankton-heavy water, or a boat or buoy in frame, would once have been cut or reframed. Now they stay. Jack Bootle, the BBC’s head of specialist factual commissioning, told journalists at a press screening: “No gen AI was used in this series. Not a single frame.”

The equipment is new too. Producer and director Yoland Bosiger built an underwater CCTV rig, nicknamed the stonefish cam, which the Guardian reports recorded dolphins using sea sponges to block holes in coral and trap fish. The crew also used a small dome camera to follow an octopus, a long pole they call a deep-sea selfie stick, and lasers to film animals in the deep. Other sequences the producers have described include grouper signalling to a different species of fish, around 200,000 crabs lining up to feed, and sea urchins carrying shells as sun hats. These descriptions come from the production ahead of broadcast; SEVENSEAS has not yet seen the full series.

Threats, and where recovery comes from

Blue Planet II ended its 2017 run on plastic pollution, and the BBC’s own launch material for the new series credits it with galvanising a global movement against single-use plastic. The new series keeps that thread. White told the Guardian that one episode shows warmer seas killing the anemones that clownfish live in, and the fish trying to repair their homes, while the plastics story carries on through pollutants and forever chemicals.

The BBC is also selling the series on hope. Speaking to Broadcast International, White described its positive stories as “examples where human help, or protection, is allowing magical underwater habitats to thrive again”.

That wording matters to anyone who works in marine protection. Recovery that follows a fishing closure, a protected area or a restoration programme is a policy outcome with a budget and people behind it. Whether Future Seas names those decisions, or presents recovery as something nature manages on its own, will decide how useful the series is to conservationists once the broadcast is over.

The scientists behind the episodes

Three University of Southampton researchers worked with the Natural History Unit. Dr Ryan Reisinger, who recently led a survey of Antarctic krill and the baleen whales that feed on them, advised on whales and sharks for the polar and Future Seas episodes. Prof Jon Copley, a deep-sea ecologist who also worked on Blue Planet II and whose recent research includes the potential impacts of deep-sea mining, advised on The Deep. Prof Clive Trueman, who studies fish physiology and marine food webs, was also consulted.

Copley pointed to the second series’ reach beyond television, saying Blue Planet II put the ocean’s challenges and choices “right in front of policymakers”.

Asked by the Guardian about the BBC’s cost-cutting, White said Blue Planet III saved money by hiring more local crews on location than earlier series did.

The trailer

BBC Earth released the extended trailer on 6 October. It is set to “Seas Cry”, with music by Hans Zimmer and Thom Lukas for Bleeding Fingers Music, sung by JADE, who co-wrote the lyrics. Zimmer and Lukas also wrote the series’ main theme.

More surprising, more sophisticated and even more important than we ever realised.

Sir David Attenborough, on the ocean life filmed for the series, October 2026

Where to watch

In the UK, new episodes air on BBC One on Sunday evenings and stream on BBC iPlayer. In the United States, the series starts on BBC America and AMC+ on 23 January 2027 at 8pm Eastern and Pacific. BBC Studios has announced pre-sales to broadcasters in Australia (Nine), Brazil (Globo), Canada (Blue Ant Media and Radio-Canada), China (Dragon TV), Denmark (DR), New Zealand (TVNZ) and Spain (MovistarPlus+), but air dates in most of those countries have not been announced.

The BBC’s announcement of the series is on the BBC Media Centre.

SEVENSEAS Media · Conservation Journalism for the Ocean