How Deep Is Your Love? is a 2025 feature documentary by Eleanor Mortimer about biologists exploring deep-sea life in the central Pacific. As they document unfamiliar species in the Clarion–Clipperton Zone, the film asks viewers to consider the value of a little-known ecosystem alongside the prospect of extracting resources from it. It is a documentary, not a film about the Bee Gees song of the same name.
What is How Deep Is Your Love? about?
The film follows scientists studying and documenting deep-sea organisms in the Clarion–Clipperton Zone, an area of the central Pacific. A National Gallery of Art screening description places the expedition at 4,700 meters below the surface. The documentary’s focus is both the work of encountering and recording unfamiliar life and the question of how people value habitats that remain difficult to explore.
Among the creatures featured on the film’s official site are “Barbie Pig,” a sea cucumber whose species is listed there as unknown, and “Caspar the ghost octopus,” which the site says has not yet been given a Latin name. These are the film’s playful nicknames, not formal scientific names.
How does the film approach deep-sea mining?
Mortimer’s documentary sets biological exploration against the prospect of deep-sea mining. Festival and production descriptions frame this as a tension between obtaining resources and recognizing the ecological value of a poorly understood environment. That is the film’s framing and invitation to reflect; it should not be mistaken for an independently established estimate of mining’s effects or a policy finding.
Who made the documentary?
Eleanor Mortimer is credited as director, writer, narrator, and director of photography. Jacob Thomas is producer, and Muriel Rabone is science advisor and co-producer, according to the film’s official site. The British Council UK Films Database lists the film in 4K.
How long is it?
Listings vary slightly: the British Council UK Films Database gives a runtime of 100 minutes, while CPH:DOX lists 101 minutes. It is safest to describe the documentary as about 100 minutes long.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Where can you watch How Deep Is Your Love??
As of 3 October 2026, the film’s official website lists UK theatrical screenings beginning 2 October 2026, with dates at named cinemas extending into February 2027 and selected Q&As with Mortimer. Screening dates and ticket availability can change, so check the official listings and confirm with the venue.
A Canadian educational supplier also lists a DVD, but its listing is restricted to orders in Canada and shows an institutional price of $419. That is not evidence of a generally available consumer DVD edition. The sources cited here do not establish wider home-video or streaming availability.
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