Films that changed minds.
A good documentary does something an essay cannot: it shows. Below is a curated list of films about animal ethics, plant-based health and environmental impacts, organised by topic. Some are graphic; we note which. Streaming availability varies by country and date, so check official viewing pages.
Earthlings (2005, Shaun Monson, narrated by Joaquin Phoenix) — a look at pets, food, clothing, entertainment and research. Graphic. Dominion (2018, Chris Delforce) — an Australian documentary using aerial drone, hidden-camera and handheld footage. Graphic. Pignorant (2024, Joey Carbstrong) investigates UK pig farming. Land of Hope and Glory (2017) examines UK animal farming. Both also contain distressing footage.
Forks Over Knives (2011) — the Esselstyn / Campbell case for whole-food plant-based diets against heart disease. The Game Changers (2018, Louie Psihoyos; executive producers include James Cameron and Arnold Schwarzenegger) — plant-based athletes and performance. What the Health (2017) — broader claims about chronic disease; useful as a starting point, check sources before quoting.
Cowspiracy (2014) — the climate case against animal agriculture, with the personal-investigation framing that made it viral. Seaspiracy (2021) — the ocean version: industrial fishing, bycatch, dolphin and whale meat. Eating Our Way to Extinction (2021) — biodiversity, ocean, climate, all in one place; narrated by Kate Winslet.
"A good documentary does something an essay cannot: it shows."
Food, Inc. (2008) — the corporate food system, including workers in animal agriculture and slaughterhouse conditions. Not strictly vegan. Slaughterhouse: The Task of Blood (2005, Brian Hill) — a graphic BBC Two documentary about workers and animal slaughter at a family-run abattoir in Oldham, England.
73 Cows (2018, 15 min, Alex Lockwood) — a UK beef farmer leaves the industry. Beautifully made. The End of Medicine (2022, Alex Lockwood) — antimicrobial resistance and pandemic risk linked to animal agriculture; executive producers include Rooney Mara and Joaquin Phoenix. Christspiracy (2024) — religious-traditions angle.
Animal rights · EthicsGraphic content
The single most cited 'turning point' film. A comprehensive look at humanity's use of animals across pets, food, clothing, entertainment and research, narrated by Joaquin Phoenix with a score by Moby. Hidden-camera footage exposes what is normally kept out of view and asks viewers to reconsider deeply rooted assumptions about human superiority.
Animal rights · InvestigativeGraphic content
The Australian update to Earthlings — technically and ethically. Handheld, hidden and aerial drone footage reveals the reality of modern animal exploitation across food, clothing, entertainment and research. Narrated by Joaquin Phoenix, Rooney Mara, Sia, Kat Von D and Sadie Sink. Free to watch.
Animal rights · UK farmingGraphic content
A UK-focused exposé of standard animal-agriculture practices in Britain — including farms certified by the RSPCA and Red Tractor schemes. Compact, devastating, essential viewing.
Ethics · Farming transition
A short, BAFTA-winning portrait of Jay Wilde, the first British beef farmer to turn his herd over to sanctuary and convert his farm to plant-based agriculture. Free on Vimeo.
Animal rights · InvestigativeGraphic content
The first major investigation into Australia's pig-farming industry, assembled from over a year of hidden-camera footage across 50+ facilities. The film that built the case for Dominion.
Animal testing · InvestigativeGraphic content
The first documentary to interview both former vivisectors and the animals who survived their labs. A quietly devastating look at the science nobody is allowed to see.
Food system · Ethics
Based on the book by Jonathan Safran Foer, narrated by Natalie Portman. Traces the disappearance of family farming and the rise of factory agriculture in America — and the small farmers, scientists and whistleblowers trying to bring something humane back.
Animal rights · Marine
Academy Award winner for Best Documentary Feature. A covert mission into a hidden cove in Taiji, Japan, exposing the world's largest annual dolphin slaughter. A heist film that doubles as an environmental masterpiece.
Captivity · Marine
The story of Tilikum, a captive orca held by SeaWorld, and the deaths he was involved in. The film turned public opinion against orca shows and is widely credited with pressuring SeaWorld to end its orca-breeding programme in 2016.
Food system · Series
Netflix investigative series — episodes on honey fraud, the garlic mafia, the avocado cartel, milk, chicken and the cod war. Each follows a single ingredient down to its corrupt, often violent supply chain.
Animal rights · InvestigativeGraphic content
A multi-year undercover investigation of the UK pork industry — including farms labelled 'humane' and 'RSPCA Assured'. Combines investigative journalism with first-hand activist footage to challenge the assumptions behind welfare labels.
Animal rights · Factory farmingGraphic content
Narrated by Jerome Flynn, this undercover investigation enters one of Britain's largest intensive pig farms — a supplier to a major supermarket chain — and documents systemic neglect, overcrowding and abuse behind the façade of high welfare standards.
Health · Nutrition
The Esselstyn and Campbell case for whole-food, plant-based diets against heart disease, diabetes and cancer. Combines patient stories with the research of Caldwell Esselstyn (Cleveland Clinic) and T. Colin Campbell (Cornell), arguing that many chronic diseases can be prevented and even reversed through diet.
Health · Sports performance
Produced by James Cameron, Arnold Schwarzenegger, Jackie Chan and Novak Djokovic. Follows elite athletes, special forces soldiers and scientists to dismantle the protein myth and make a slick, inviting case for plant-based performance. The most accessible health-angle entry point.
Health · Policy
An investigation into the relationship between diet, chronic disease and the health organisations funded by the industries causing them. Useful as a starter; the broad direction is well supported by epidemiology, but check exact figures before quoting.
Health policy · Nutrition
T. Colin Campbell's son Nelson investigates the political and corporate forces shaping public nutrition guidelines in the United States, while running a community pilot of a whole-food, plant-based diet in Mebane, North Carolina.
Public health · Pandemics
Executive produced by Rooney Mara and Joaquin Phoenix. Connects animal agriculture to antimicrobial resistance and pandemic risk through interviews with scientists, doctors, veterinarians and public-health experts. A clear public-health argument for shifting away from animal farming.
Environment · Climate
The personal-investigation film that made animal agriculture's climate footprint a mainstream conversation. Asks why major environmental groups have historically avoided the topic, and meets the scientists, ranchers and activists who do address it.
Environment · Oceans
The ocean version of Cowspiracy: industrial fishing, bycatch, plastic pollution, dolphin and whale hunting, and the certifications that obscure rather than fix the problem. Some statistics have been contested; the core argument — that scale of fishing is incompatible with marine recovery — is widely supported.
Environment · Biodiversity
Narrated by Kate Winslet, with appearances from Sylvia Earle, Tony Robbins and Richard Branson. Brings together climate, ocean, deforestation and biodiversity loss into a single argument about the food system. Polished, cinematic and broadly accessible.
Environment · Biodiversity
David Attenborough's 'witness statement' for the natural world. Not strictly a vegan film, but the recommendations are explicit: shift to a largely plant-based diet, restore land and oceans, stabilise the human population. Excellent family viewing.
Food system · Investigative
The gateway film for many. Examines the corporate food system in the United States — its workers, animal welfare, environmental costs and political capture — through Eric Schlosser, Michael Pollan and Joel Salatin. Not strictly vegan, but starts most of the conversations that vegan films deepen.
Food system · Policy
Fifteen years on, the same team revisit the consolidated, lobbying-heavy food industry that emerged in the wake of the original — and the alternatives now scaling up, from cellular agriculture to community food systems.
Labour · ObservationalGraphic content
BBC Two documentary filmed inside a family-run abattoir in Oldham, England. It follows the slaughtermen through their working days and asks what the job does to the people who do it; its graphic scenes drew complaints to the UK regulator Ofcom.
Religion · Ethics
A multi-year investigation across continents into whether any spiritual tradition can justify the killing of animals for food. Interviews theologians, scholars, archaeologists and spiritual leaders, tracing how teachings on compassion and stewardship have been interpreted across 2,000 years.
Lifestyle · Veganism 101
Three meat-and-cheese-loving New Yorkers take a six-week vegan challenge. A warm, accessible introduction to the practical realities of plant-based eating, food shopping, social pressure and ethical learning curves — relatable for newcomers and family viewing.
Lifestyle · Community
Four very different people, one thing in common — all are vegan. A quiet, intimate film that focuses on culture, work, family and daily life rather than shock footage or polemics. Useful for showing the normality of long-term plant-based living.
Environment · Animated short
A short animated explainer from the Center for Investigative Reporting on what America's burger habit really costs in water, land, fertiliser runoff and greenhouse gases. Eight minutes, with an annotated list of sources.
Ethics · Lecture
Gary Yourofsky's Georgia Tech lecture — one of the most-shared vegan talks online, credited with turning hundreds of thousands of viewers plant-based. Direct, unsparing, no images of slaughter.
The Game Changers (90 min, streaming on Netflix).
Cowspiracy (90 min) or Eating Our Way to Extinction (80 min).
73 Cows (15 min) — gentle and short; or Dominion if they're ready.
Forks Over Knives.
Food, Inc. — broader, less hectoring.
Share of students ordering a meatless meal in each condition. Neither advocacy video significantly beat its matched control.
% ordering a meatless meal
Faunalytics, 'Reduce Or Go Veg?', 2020, Figure 4
A curator's quick-pick guide.
| If they care about… | Start with | Then watch | Avoid if squeamish |
|---|---|---|---|
| Climate / planet | Cowspiracy | Seaspiracy, Eating Our Way to Extinction | Seaspiracy; preview other titles |
| Health | Forks Over Knives | The Game Changers, What the Health | — |
| Animals (intro) | Land of Hope and Glory | Cock Fight, Lucent | Land of Hope and Glory, Lucent, Earthlings; preview Cock Fight |
| Animals (ready) | Dominion | Earthlings | Dominion, Earthlings |
| Big picture | The End of Medicine | Christspiracy | Christspiracy; preview The End of Medicine |
Three rules of thumb. One, start with the topic that already worries you — climate-anxious viewers begin with Cowspiracy; health-curious viewers with Forks Over Knives or What the Health; ethics-led viewers with Earthlings or Dominion. Two, watch with someone if you can — the conversation afterwards does more than the film. Three, the graphic ones (Earthlings, Dominion) work best as a single viewing; don't loop them.
Evidence that documentaries cause lasting dietary change is mixed. A 2021 paper by Stanford-affiliated researchers reported three randomised experiments with a different documentary; it did not find reduced reported meat and animal-product consumption when potential social-desirability bias was minimised. A film may prompt reflection, but neither a viewing nor a follow-up meal guarantees behaviour change.
For depth, pair films with books: Eating Animals (Foer), This Is Vegan Propaganda (Earthling Ed), Why We Love Dogs, Eat Pigs, and Wear Cows (Joy), How Not to Die (Greger), We Are the Weather (Foer). Animal Equality and Mercy For Animals publish undercover investigations. For policy, read FAO's Livestock's Long Shadow (2006) and the EAT-Lancet Commission's 2019 report, Food in the Anthropocene.
Uptake is out of everyone who saw the video; follow-through is out of pledge-takers only.
% of the stated group
Faunalytics, 'Reduce Or Go Veg?', 2020, key findings
Shaun Monson's documentary, narrated by Joaquin Phoenix, uses hidden-camera footage of animals used for food, clothing, entertainment and research.
Lee Fulkerson's film brings the whole-food, plant-based research of T. Colin Campbell and Caldwell Esselstyn to a wide audience.
Kip Andersen and Keegan Kuhn put animal agriculture's environmental footprint in the spotlight; researchers have disputed some of its figures.
Chris Delforce's film, narrated by Joaquin Phoenix, Rooney Mara and others, compiles drone and hidden-camera footage from Australian farms and slaughterhouses.
Louie Psihoyos's film about plant-based athletes is released worldwide after its 2018 Sundance premiere.
Ali Tabrizi's Netflix film challenges sustainable-fishing labels; several organisations featured in it disputed how their interviews were used.
Start with health-curious friends and Forks Over Knives or The Game Changers; start with climate-minded ones and Eating Our Way to Extinction. The wrong film for the room is worse than no film.
A generous plant-based meal before the credits roll can make the evening welcoming and offer a practical example. Treat it as hospitality, not a proven way to outperform the film's persuasive effect.
Let the film speak. Ask one open question — 'what surprised you?' — and listen. The conversation people lead themselves into is the one they remember.
A recipe link, a beginner's guide, or an invitation to next month's dinner gives interested viewers a practical next step. Let people move at their own pace.
Availability varies by country and changes over time. Check each film's official viewing page rather than assuming Netflix or Prime carries it. Dominion offers free viewing through its official website, and Earthlings provides viewing information on its official site.
Some of these are difficult. Watch with a friend, take breaks, and don't binge them. Earthlings and Dominion are the most graphic; The Game Changers and Forks Over Knives are not.
What the Health, Cowspiracy and Seaspiracy have all been challenged on specific statistics and interpretations. Assess each claim separately against current research rather than treating a film's overall argument as verified.
73 Cows can be a gentler starting point. For nature documentaries, including David Attenborough's work, check the specific film's age rating and content advice: some include predation, animal injury or distressing environmental themes. Preview anything intended for children.
No one needs to watch graphic footage to make informed choices. Hopeful films and graphic exposés reach different audiences, and no single approach works for everyone. Offer clear content warnings, respect viewers' preferences and use disturbing footage only with informed consent.
Check disputed claims individually rather than assuming either that an entire film is accurate or that every argument is wrong. Animal agriculture contributes substantially to emissions, and appropriately planned plant-based diets can improve some cardiometabolic outcomes. That does not validate every disease claim in a film. Use films as conversation starters, not citation lists.
Start with each film's official website for authorised viewing links. Dominion offers free viewing at dominionmovement.com; Earthlings lists viewing information through Nation Earth. Netflix, Prime, Vimeo and other services vary by country, title and date, so confirm current availability.
Consider 73 Cows as a gentler starting point, but preview it and check suitability for the child's age. The Game Changers includes adult themes, and environmental documentaries may include distressing imagery. Cowspiracy includes animal-killing footage and is not a reliably non-graphic choice.
Documentaries change behavior — but only under specific conditions the research now describes well.
A randomised study summarised by Faunalytics compared Cowspiracy with an episode of Planet Earth among daily meat-eaters aged 19–32. Cowspiracy improved environmental knowledge, attitudes toward eating less meat and intentions to cut back. These are short-term measures, not proof of lasting dietary change.[1]
In Faunalytics' 2020 campus experiment, 25.8% ordered a meatless meal after a meat-reduction video and 18.9% after a go-vegetarian video. The difference was only marginally significant, and neither video clearly outperformed its matched control.[2]
Research summarised by Faunalytics shows how demand effects and selective participation can inflate the apparent effect of a documentary. Judging films by viewers' stated intentions alone can overstate their impact on what people actually eat.[3]
Watching is the first step. If a film stayed with you, the seven-day starter is the practical next move.
