BBC keeps murky ocean footage to counter AI doubts

The production team behind Blue Planet III has deliberately preserved cloudy water and imperfect framing in the final cut. Their goal is to prove the footage is genuine at a time when artificial intelligence can create convincing fake videos. This decision marks a shift away from the polished, high-gloss visuals that defined earlier nature documentaries.

Executive producer Elizabeth White explained that the rise of AI has pushed the crew to embrace a more organic aesthetic. "AI makes us want to be even more authentic," White said. She noted that the deep-sea animals captured on camera are likely more remarkable than any algorithm could imagine. White added that the series is "completely real," a claim she made to reassure viewers who might suspect digital manipulation.

In previous seasons, editors often removed shots containing plankton, boats, or buoys. Poor water conditions could lead to a clip being rejected entirely. For this new series, the team is keeping those details. White stated that the production is "really leaning into that authenticity." She predicted the unit will use even murkier imagery in the future as AI technology continues to improve.

Jack Bootle, the BBC's head of specialist factual commissioning, provided a specific guarantee to journalists at a press screening. "No gen AI was used in this series," Bootle said. "Not a single frame. It's all real photography." He described the current moment as a "golden age of natural history-making" where audiences might feel they have seen everything. Bootle insisted this new series is "bursting with novel behavior."

The new episodes feature several first-time recordings. One scene shows dolphins using sea sponges to block holes in coral reefs to trap fish. This behavior was captured using underwater CCTV developed by series director Yoland Bosiger. Other sequences include a grouper communicating with a different species of fish and 200,000 crabs forming lines to feed. The series also documents sea urchins using shells as sun hats.

Filming for the project lasted four years and covered five oceans. Series producer Lara Bickerton said the team continually innovated their equipment. They built a "mini-dome" camera to track octopuses and created a "deep-sea selfie stick." Camera operators wore leg-mounted scooters to capture immersive diving footage. Lasers were also used to illuminate deep-sea animals.

The series addresses ocean threats alongside signs of resilience. One episode details how warmer seas are killing the sea anemones that house clownfish. The footage shows the fish attempting to repair their damaged homes. The theme of plastic pollution from the second series continues with a focus on pollutants and forever chemicals, according to White.

Narrator David Attenborough, who turns 100 this year, was actively involved in the production. Bosiger said Attenborough was "very much involved" and made changes to the scripts. White noted that Attenborough remains curious and excited when shown new footage. When asked if the BBC's £500m cost-cutting drive could affect the unit's reputation, White declined to comment directly. She did note that the series saved money by hiring more local crews on location than previous productions.

Blue Planet III begins airing on Sunday, 1 November, on BBC1 and the iPlayer platform.