De souche (2026): Cast, Story and Release Details

Prepared by Movies Dock Editorial

De souche investigates the spread of the “Great Replacement” conspiracy theory through interviews and reporting across Québec and France. Directed by Simon Coutu and Manuelle Légaré, the 52-minute French-language documentary examines the rhetoric’s origins, its effects, and its links to far-right and white supremacist movements.

De souche examines the “Great Replacement” conspiracy theory at a time when immigration occupies an increasingly prominent place in political debate. The French-language documentary follows journalist and filmmaker Simon Coutu across Québec and France as he investigates how this rhetoric developed and spread.

Directed by Coutu and Manuelle Légaré, the 52-minute film approaches its subject through conversations with people who believe in the theory as well as those who specialize in studying it. Its focus is the ideology’s reach, consequences and relationship with extremist movements.

De souche movie details

Story without spoilers

Simon Coutu travels through Québec and France to explore the origins and circulation of the “Great Replacement” conspiracy theory. The documentary brings together perspectives from adherents and subject-matter specialists, using those encounters to examine how the theory is framed, why it has gained attention across the Western world, and how it connects with far-right and white supremacist movements. The film also considers the harm associated with this rhetoric without revealing its full conclusions.

What to expect

As a documentary centered on conspiracy theory, racism and political rhetoric, De souche is focused on investigation and critical examination rather than fictional storytelling. Viewers can expect a concise, issue-driven film built around travel, interviews and analysis of the theory’s origins and consequences. Its subject matter includes immigration discourse, far-right ideology and white supremacy.

Cast and creative team

Simon Coutu serves as both journalist and filmmaker within the documentary and is also credited as a cast member. He co-directed and co-wrote De souche with Manuelle Légaré, who shares both credits. The film’s production company is A Média.

• Simon Coutu

Release and production context

De souche is a 2026 documentary from Canada, presented in French and running 52 minutes. It is listed with a release date of November 5, 2026, and is produced by A Média. The film’s setting spans Québec and France, reflecting its examination of a theory circulating across the Western world.

Production companies: A Média

Movies Dock view

With its focused running time and clearly defined subject, De souche presents an examination of the “Great Replacement” theory through reporting in Québec and France. Its value as a guide to the topic lies in its attention to the rhetoric’s origins, consequences and extremist connections, all within a French-language documentary framework.

Film data:
TMDB