Gerald Fox’s documentary on early film-makers’ fascination with dreams and human consciousness is a fascinating, if rather scholarly endeavour Gerald Fox’s documentary on early film-makers’ fascination with dreams and human consciousness is a fascinating, if rather scholarly endeavour L uis Buñuel wrote that dreams were the first cinema. His short film Un Chien Andalou, co-written with Salvador Dalí and inspired by the pair’s dreams, is nearly 100 years old but its images still have the power