The BFI LFF Documentary Competition is stacked with exciting titles including Theo Rollason’s Queer Edward II, an innovative behind-the-scenes peek at Derek Jarman’s eponymous film; Erik Shirai’s Sumo: Spirit Weighs Nothing, a Japanese-US-Danish-UK co-production opening Venice Spotlight; and Once Upon a Time in Harlem, a verité look at the Harlem Renaissance from US doc legend William Greaves, posthumously finished by his son David. Neon acquired Once Upon A Time In Harlem after its glowing reception at the Sundance Film Festival in January. It was also selected to the Directors' Fortnight section of the 2026 Cannes Film Festival.