Salvador Dalí was shown". Both of these films, "Un Chien Andalou" and "L'Age d'Or", have had a tremendous impact on the independent surrealist film movement. "If "Un Chien Andalou" stands as the supreme record of Surrealism's adventures into the realm of the unconscious, then "L'Âge d'Or" is perhaps the most trenchant and implacable expression of its revolutionary intent". Dalí worked with other famous filmmakers, such as Alfred Hitchcock. The most well-known of his film projects is probably the dream sequence in Hitchcock's "Spellbound", which delves into themes of psychoanalysis. Hitchcock needed a dreamlike quality to his film, which dealt with the idea
Filmmaking technique of Luis Buñuel for example, combining the sound of gushing water with an image of a stagnant pool, or exaggerating the volume level of chiming bells. Music is an important part of Buñuel's early films, to such an extent that, for his one silent film "Un Chien Andalou", in his sixties, he took the trouble to create a sonorised version. He based this version on the music (Wagner, a South American tango) played at its original screening. "Un Chien Andalou" was his first film—made in the silent era—and was called "the most famous short film ever made" by critic Roger Ebert. One critic