A documentary about soil just won at Cannes, and it’s landing on Prime Video this Friday.

“Groundswell,” executive produced and narrated by Woody Harrelson and Demi Moore, completes a trilogy that started with “Kiss the Ground” and “Common Ground.” Directed by Josh and Rebecca Harrell Tickell, the film spans five continents to track a global farming revolution that’s quietly addressing climate change, species extinction, and soil loss all at once.

The premise is straightforward. Regenerative agriculture builds living soil, stores carbon underground, and produces more nutrient-dense food per acre. The film shows farmers, scientists, and Indigenous leaders already proving it works at scale. Grasslands are recovering. Rivers are running cleaner. Yields are climbing.

The doc took home the Golden Globes Prize for Documentary at the 2026 Cannes Film Festival, earning recognition for a film that wraps a very real environmental crisis in accessible, solutions-focused storytelling. Prince William even makes an appearance, introducing regenerative rancher Gabe Brown in a symbolic passing of the torch.

While “Kiss the Ground” introduced soil health to a mainstream audience and “Common Ground” tackled policy and power, “Groundswell” closes the loop with a global call to action. It’s rare to see a documentary trilogy stick the landing, especially one built around dirt. This one might actually matter.

“Groundswell” hits Prime Video June 5.