Earth Day lands on April 22nd every year, and if you’re the kind of person who feels something when you see a time-lapse of a glacier retreating, or who went through a phase of watching nature documentaries until 2 in the morning and couldn’t stop, then this list is for you. Earth Day movies exist on a wide spectrum: some are devastating, some are quietly hopeful, some are animated masterpieces that made you cry in a theater and you’re still not fully over it. The best ones do what all great film does, they take something enormous and make it personal.
This is our rundown of the essential Earth Day movies worth watching, from Pixar’s most quietly radical animated feature to the most important documentary one man has ever made about a planet he has spent 93 years falling in love with. Grab something to drink, get comfortable, and let’s talk about the films that make you want to fight for this planet.
WALL-E (2008)
Let’s start here, because there is no list of Earth Day movies worth taking seriously that does not begin with WALL-E. Pixar’s 2008 masterpiece is, in the most straightforward terms, a love story between two robots. But underneath the warmth and the humor and the genuinely astonishing animation is one of the most pointed environmental films ever released by a major studio, and the fact that it arrived wrapped in a family-friendly bow makes it even more remarkable.
Director Andrew Stanton set his film on an Earth so buried in centuries of consumer waste that humanity has completely abandoned it, leaving behind a single small robot named WALL-E to compact the trash indefinitely. The opening act, almost entirely wordless, is a small miracle of visual storytelling. WALL-E’s world is made entirely of garbage, and yet he has built a life inside it: collecting curiosities, watching old musicals, taking care of a small plant that has somehow pushed through the landfill. When EVE arrives from space to search for signs of biological life, the film becomes a chase across the galaxy, but it never loses sight of what it’s actually about.
WALL-E is a film about what we leave behind when we stop paying attention. The floating, screen-addicted humans aboard the Axiom spaceship are not villains, they are just the logical endpoint of a culture that optimized for comfort at the expense of everything else. The film’s environmental message never lectures, it simply shows. That restraint is what makes it hit so hard. Watch it on Earth Day with someone who hasn’t seen it yet and watch their face during the final twenty minutes. It’s something special.
David Attenborough: A Life on Our Planet (2020)
Before we go any further, we need to talk about Sir David Attenborough, because no discussion of Earth Day cinema is complete without him. Attenborough has spent more than six decades exploring, filming, and narrating the natural world at a level no one else has come close to. Planet Earth, Blue Planet, Life, The Blue Planet II: his fingerprints are on the most breathtaking nature documentary work ever produced for television. But A Life on Our Planet, released on Netflix in 2020, is something different from all of it. It is, as Attenborough describes it himself, his witness statement.
The film opens in Chernobyl, the abandoned Ukrainian city frozen in time since the 1986 nuclear disaster, now being slowly reclaimed by nature. Standing in that ghost town, Attenborough begins to reflect on what he has seen over 93 years of life: the world as it was when he was born in 1926, the world as it is now, and the world as it will be if humanity’s current trajectory continues unchanged. He tracks the numbers methodically: world population, carbon in the atmosphere, remaining wilderness. The trend lines are not good.
What makes A Life on Our Planet essential rather than merely depressing is its final act. Attenborough does not end on despair. He lays out, clearly and specifically, what he believes needs to happen: rewilding large areas of land and ocean, transitioning to renewable energy, stabilizing the human population through education and economic development, and reducing our dependence on meat-based diets. His argument is that if we take care of nature, nature will take care of us. Coming from a man who has watched the natural world for longer than almost anyone alive, that argument lands with considerable weight.
If you have only time for one documentary on this list, make it this one. It is honest, it is urgent, and it is ultimately hopeful in a way that feels earned rather than forced. Attenborough has earned the right to hope more than any person on earth, and watching him articulate it is a genuinely moving experience. Available on Netflix.
Princess Mononoke (1997)
Hayao Miyazaki’s films have always understood the natural world in a way that most Western cinema never has. From the forest spirits of My Neighbor Totoro to the wind and sky of Nausicaa of the Valley of the Wind, Studio Ghibli has consistently treated nature not as a backdrop but as a character with its own agency and voice. Princess Mononoke takes that idea further than any of Miyazaki’s other films and wrestles with it honestly rather than offering easy resolution.
Set in late medieval Japan, the film follows Ashitaka, a young prince who travels west after being cursed by a corrupted boar god, and finds himself caught between the industrial ironworks of Lady Eboshi and the forest gods led by the wolf-raised San, the Princess Mononoke of the title. What makes the film remarkable is its refusal to make either side the villain. Lady Eboshi employs outcasts and former brothel workers, she is building something genuine for people who have nowhere else to go. The forest gods are fighting to survive. The conflict between them is not good versus evil but development versus preservation, and Miyazaki does not pretend that tension has a clean answer.
The animation is extraordinary, the spirit creatures among the most haunting and beautiful Ghibli has ever produced, and the film’s ecological themes feel more relevant with each passing year. It is rated PG-13 and earns it; this is not a gentle film. But it is a great one, and it belongs on every Earth Day list.
Erin Brockovich (2000)
Not every Earth Day film has to be a sweeping epic about the fate of the whole planet. Sometimes the most effective environmental story is one person in one town fighting for the people in their immediate community. Erin Brockovich is that story, and it is one of the best films of the 2000s, period.
Julia Roberts won her Academy Award for Best Actress playing the real-life Erin Brockovich, an unemployed single mother with no legal training who essentially strong-arms her way into a job at a small law firm and then proceeds to uncover one of the largest cases of groundwater contamination in American history. Pacific Gas and Electric had been dumping chromium-6 into the water supply near Hinkley, California for decades, and the residents of Hinkley were getting sick. Brockovich connected the dots, built the case, and the resulting settlement of 333 million dollars remains the largest ever paid in a direct-action lawsuit in American history.
Director Steven Soderbergh keeps the film moving at a pace that never lets you forget this is also a thriller, and Roberts is absolutely magnetic throughout. What gives the film its Earth Day resonance is how specific it is: this is not an abstract story about climate policy, it is about what happens when a corporation poisons the water that real families drink, and what one furious and completely unstoppable person does about it. It is inspiring in the purest sense of the word.
An Inconvenient Truth (2006)
Measured by impact, An Inconvenient Truth might be the most consequential documentary on this list. Al Gore’s slide show presentation about the science and urgency of climate change, filmed and directed by Davis Guggenheim, won two Academy Awards and is widely credited with shifting public awareness of climate change in a way that no amount of scientific papers or news coverage had managed to do. It made global warming something that regular people felt, not just something they read about.
Almost twenty years on, the film holds up better than its critics expected. The science has not changed, and in many cases the projections Gore presented in 2006 have turned out to be conservative estimates. Watching it now, with the benefit of hindsight, is a strange experience: the urgency feels even more justified, and the window for action that Gore described has narrowed considerably. But the film’s core argument, that this is a moral issue as much as a political or scientific one, remains exactly right. Earth Day exists precisely because enough people decided that this planet’s future is worth fighting for. An Inconvenient Truth is the documentary that reminded a generation why that fight matters.
Avatar (2009)
Avatar is the highest-grossing film in cinema history, and its environmental themes are not subtle. James Cameron’s epic science fiction blockbuster is, at its most stripped-down, a story about a mining corporation destroying an indigenous people’s sacred forest to extract a mineral called unobtanium, and it does not ask you to feel ambivalent about that. The parallels to real-world resource extraction and indigenous land rights are intentional and unambiguous.
What makes Avatar worth revisiting on Earth Day, beyond its staggering visual achievement, is how completely it immerses you in the Pandoran ecosystem. The neural connections between the Na’vi and the trees, the animals, the land itself: Cameron built a world where interconnectedness is not a metaphor but a biological fact, and the destruction of that world feels genuinely devastating because of how vividly it has been rendered. The film’s message is not complicated. But complicated is not always what Earth Day calls for. Sometimes you just need to watch something that reminds you why the natural world is worth protecting in the first place, and Avatar does that at a scale no other film has matched.
The Day After Tomorrow (2004)
We are putting The Day After Tomorrow on this list with full acknowledgment that it is a disaster movie that takes considerable creative liberties with climate science. The events depicted, superstorms flash-freezing the Northern Hemisphere over the course of a few days, are not how climate change actually works. Director Roland Emmerich knows this. The scientists depicted in the film know this. It does not matter, because as a piece of spectacle filmmaking designed to make audiences feel something visceral about climate change, it absolutely delivers.
Dennis Quaid plays a paleoclimatologist who has been warning about ocean current disruption for years without anyone in government listening. Jake Gyllenhaal plays his son, trapped in the New York Public Library as the city freezes solid. The film’s imagery, Manhattan under water, the Statue of Liberty buried in ice, wolves loose in the streets, hit something primal that no amount of accurate scientific documentation quite manages to replicate. The Day After Tomorrow was a cultural moment. It got people talking about climate change who had never thought about it before. On Earth Day, that counts for something.
Okja (2017)
Bong Joon-ho’s Netflix film is unlike anything else on this list, and it is one of the most quietly devastating things he has ever made, which is saying something for the director of Parasite. Okja follows Mija, a young South Korean girl who has raised a genetically engineered super pig named Okja from birth. When the corporation that created Okja reclaims her to be processed into food products, Mija travels to New York to get her back.
The film functions simultaneously as a children’s adventure, a corporate satire, an animal rights drama, and a genuinely disturbing look at industrial food production. The final act, set in a slaughterhouse, is not graphic in a gratuitous way but it is honest in a way that most films about the food industry are not. Tilda Swinton plays the corporation’s CEO with terrifying cheerfulness, and the film understands that the horror it is depicting is not the product of evil individuals but of systems that have been designed to make this kind of destruction invisible and efficient. It is the most unexpected entry on this list and possibly the most important one.
Before the Flood (2016)
Leonardo DiCaprio has been one of Hollywood’s most committed environmental advocates for decades, and Before the Flood is the documentary he made to channel that advocacy into something concrete. Directed by Fisher Stevens and produced by DiCaprio himself, the film follows him across the globe to document the front lines of climate change: the melting ice of Greenland, the deforested landscapes of Indonesia, the tar sands of Alberta, the flooding coastlines of Kiribati.
What distinguishes Before the Flood from other celebrity climate documentaries is DiCaprio’s genuine curiosity and discomfort throughout the film. He is not presenting himself as an expert: he interviews scientists, economists, politicians, and ordinary people who are already living with the consequences of a warming planet, and he is visibly affected by what he finds. The film also does not shy away from the political dimensions of climate inaction, including the role of fossil fuel industry lobbying in blocking progress. It was released for free online shortly before the 2016 US election, and the timing was intentional. Available on Disney+ and YouTube.
Interstellar (2014)
Christopher Nolan’s space epic is not, strictly speaking, an environmental film. But its premise is entirely environmental: it is set in a near future where crop blights have made most of Earth uninhabitable, and the remnants of NASA are secretly working on a plan to find a new home for humanity because the old one is almost gone. The opening act of the film, set on a dying farm in a dying world, is some of Nolan’s best work: dusty, quiet, and filled with a grief that the film never fully leaves behind even as it hurtles into space.
What Interstellar contributes to the Earth Day conversation is its emotional argument that this planet is worth mourning. The film’s central tension is not really about physics or wormholes, it is about whether love for a specific place and specific people is enough to save them. Matthew McConaughey’s Cooper is not trying to save humanity in the abstract: he is trying to get home to his daughter. That specificity is what makes the film’s environmental stakes feel real. A world where the corn is dead and the sky is brown is not a backdrop, it is the whole point.
The Lorax (2012)
Yes, we are including The Lorax. If you have kids, or if you have a soft spot for Dr. Seuss, or if you just want something that delivers its Earth Day message with songs and bright colors and Danny DeVito voicing a small orange forest guardian, The Lorax earns its place on this list. Based on Seuss’s 1971 picture book, the film tells the story of the Once-ler, who cuts down every Truffula Tree in the forest to manufacture a product called a Thneed, and the Lorax, who speaks for the trees and cannot stop the destruction but refuses to leave without being heard.
The film’s environmental message is about as direct as it gets: unchecked industrial greed destroys natural ecosystems, and by the time you notice the damage it may be too late to reverse it. For a children’s animated film, it carries that message with real weight. The book was written in 1971, the first year after Earth Day was founded, and its core argument has not aged a day. Sometimes the most straightforward version of a story is also the most effective one.
The Bottom Line
The best Earth Day films share something important: they make the abstract personal. Climate change, environmental destruction, biodiversity loss: these are enormous, civilization-scale problems that are easy to tune out precisely because of how large they are. But WALL-E makes you feel it through a small robot collecting bottle caps. A Life on Our Planet makes you feel it through one man’s lifetime of watching the world change. Erin Brockovich makes you feel it through a town’s worth of people getting sick from their own water.
That is what film does better than any other medium. It narrows the frame. It puts a face on something that does not have one. It makes you sit with something you might otherwise look away from. Earth Day exists because enough people decided that this planet matters and that the way we treat it is worth fighting about. The films on this list are some of the best arguments ever made for why they were right.
Happy Earth Day. Watch something that makes you want to do something about it.
