The Making of Blue Planet III | How the BBC Captured the Impossible

In this Oceanographic Roundtable discussion, community editor Rob Hutchins sits down with the filmmaking team behind BBC’s landmark series Blue Planet III: Series Producer Lara Bickerton, alongside episode producers Yolly Bossinger (Tropical Seas) and Natasha Fellows (Open Ocean), to pull back the curtain on four and a half years of filming across 100 countries. From pioneering low-angle camera rigs to uncovering never-before-filmed marine behaviours and crafting an ethereal score with Hans Zimmer’s team, the producers reveal the technological grit, scientific collaboration, and storytelling choices required to build on a 25-year natural history legacy. In this episode: • The Weight of a 25-Year Legacy: The producers reflect on following in the footsteps of The Blue Planet and Blue Planet II, the pressure of keeping secrets across 4.5 years of production, and handling audience expectations. • Tackling Ocean Crisis with Hope: Why the series rejected sheer "doom and gloom" to spotlight resilience, from documenting coral bleaching intimately through a clownfish’s perspective to the comeback of menhaden fish that brought humpback whales breaching directly in front of the Manhattan skyline. • Miniature Tech & Ground-Level Perspectives: How custom micro-cameras mounted on pole tripods allowed crews to film at eye level with tawny nurse sharks hunting right onto the beach, while capturing the comedic charm of waving mangrove crabs. • Decoding Unseen Animal Behaviours: How marine scientists helped verify unprecedented open-ocean interactions, including rough-toothed dolphins bubble-blasting to peel pilot fish away from sea turtles, and loggerhead turtles ingeniously exploiting offshore fish pens. • The Eerie Soundscape of the Deep: Inside the soundtrack crafted by Hans Zimmer and the Bleeding Fingers Music team (including Tom Lucas and Laurentia Editha), featuring the rare Cristal Baschet, an unusual glass-rod instrument used to produce the series' haunting, watery acoustics. • The Master at Work: What it felt like to watch Sir David Attenborough bring the footage to life in the recording booth at nearly 100 years of age.