The company Les films du Worso was created in 2003 by Sylvie Pialat, after 21 years together with Maurice Pialat, whom she accompanied on his last 5 films. She is notably credited with the screenplay of Police and Van Gogh and signed the adaptation of Georges Bernanos' novel Sous le soleil de Satan (Palme d'Or at Cannes in 1987). She also worked hand in hand with Daniel Toscan du Plantier on the production of her husband's films.

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After fifteen years in business, Les films du Worso has produced some forty feature films for the cinema and has worked with directors from all over the world, such as Nicolas Boukhrief, Alain Guiraudie, Guillaume Nicloux, Julie Gravras, Joachim Lafosse, Abderrahmane Sissako, Cédric Kahn, Xavier Beauvois, Gustave Kervern and Benoît Delépine, as well as Amos Gitaï and Corneliu Porumboiu.

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14 films have been selected for the Cannes Film Festival and the catalogue has received 28 César nominations (including 10 awards) and a nomination for the Oscar for Best International Film in 2015 with Timbuktu. 

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Fuelled by energy and desire, the company has grown and diversified since its creation with a team marked by a family spirit. Benoît Quainon joined Les films du Worso in 2006 and has been an associate producer since 2015. Alejandro Arenas joined the team in 2012, he is now in charge of international projects and is an associate partner producer since 2021. The production of short films, entrusted to Toufik Ayadi and Christophe Barral from 2010 to 2017, is now managed by Solène Caron and Hilaire Perthuis.

Sylvie Pialat has been awarded the Daniel Toscan du Plantier Prize for the best producer of the year (in 2014 and 2015) by the Académie des Arts et Techniques du Cinéma (César) two years running. In 2015, she presided over the Jury of the Les Arcs European Film Festival. In 2018, she was President of the Queer Palm Jury at the 71st Cannes Film Festival. Since 2018 she is a member of the Academy of Motion Picture Arts and Sciences (Oscars).