Author of numerous documentary and experimental films and a trained director, Geoffrey Lachassagne has lived in France, the United States, and the South Pacific. In his films, he gives voice to forgotten, buried, and unspoken stories, highlighting the power of the myths we tell ourselves.

In Apocryphal County (2023), he gives the county of Yoknapatawpha, entirely invented by William Faulkner, a real presence, emphasizing reality within the imagined by overlaying it with an actual geography.

In The Capture (2014), he retraces the world of the writer Pierre Bergounioux, inviting him on an entomological hunt that transforms into a philosophical portrait of an unparalleled man.

His documentary essay Caledonia (2021) explores the New Caledonia of today, still driven by a dream of decolonisation, but striving to make its voice heard.

Between history and legend, Geoffrey Lachassagne portrays a population with multiple identities and documents the deconstruction of a myth, revealing a much more complex reality.