Six women roam the neon-lit city of Paris after dark. Over the course of a single night, their journeys intertwine reality, dreams and fiction. Whether at bus stops or corner shops, in restrooms or in bars, they give voice to their dreams, sexual desires and uncertainties about the future. Welcome to British filmmaker and artist Beatrice Gibson’s full-length feature debut, an experimental and “autofictional” film called, simply, At Night. The movie will world premiere at the Locarno Film Festival on Saturday, Aug. 8, in the Filmmakers of the Present competition program of the Swiss fest’s 79th edition, which runs Aug. 5-15. Written and…