Official Trailer for ‘D is for Distance’ Documentary Film About Epilepsy

by Alex Billington
February 16, 2026
Source: YouTube

“Time future contained in time past. The same old story…” BFI has revealed the main official trailer for an acclaimed indie documentary film titled D is for Distance, made by two filmmakers telling their own story as parents of a boy with epilepsy. Made in the UK, this experimental doc film is opening in UK cinemas starting in April. It premiered at the 2025 Rotterdam Film Festival and played at Thessaloniki, London, and Vienna Film Festivals as well. A meditation on cinema, the NHS and family relationships, D is for Distance tells the story of the filmmakers’ son Louis, and his debilitating experiences living with epilepsy, through an extraordinary archive of personal footage. Narrated by English actress Jodhi May. Louis, who is now 22, is also an emerging artist working in London. The experiences of his condition have vividly influenced his paintings, drawings and etchings, exhibited during last year’s London Film Festival and seen throughout the film as well. D is for Distance is also a celebration of music, including songs from Holger Czukay, The Everly Brothers, Ennio Morricone, King Krule, and others. Certainly seems like a unique cinematic creation.

Official trailer (+ poster) for Emma Matthews & Christopher Petit’s doc D is for Distance, via YouTube:

Thank you to Live for Films. D is for Distance is deeply personal and highly moving. Using a montage of contemporary family and travel footage, with archival clips from early cinema history, it dramatically yet poetically illustrates what has happened since Louis Petit, at 12 years old, was suddenly struck with a seemingly incurable and life-threatening rare form of epilepsy, which wiped out his memory of childhood. A rumination on memory and a meditation on cinema, the NHS and family relationships, the doc film also offers a frank and uncompromising insight into medical bureaucracy and the stigma and ignorance still surrounding epilepsy. D is for Distance is co-directed by the filmmakers & both of Louis’ parents Emma Matthews (a film editor making her directorial debut) & Christopher Petit (director of Radio On, Flight to Berlin, Chinese Boxes, London Orbital, The Film That Buys the Cinema). Produced by Jussi Eerola and Mika Taanila. This first premiered at the 2025 Rotterdam Film Festival last year. BFI debuts the doc D is for Distance is select UK cinemas starting April 3rd, 2026 this spring. No US release date is set yet. Curious?

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