Luis Buñuel Mother" series, is their grandson. After this apprenticeship, Buñuel shot and directed a 16-minute short, "Un Chien Andalou", with Salvador Dalí. The film, financed by Buñuel's mother, consists of a series of startling images of a Freudian nature, starting with a woman's eyeball being sliced open with a razor blade. "Un Chien Andalou" was enthusiastically received by the burgeoning French surrealist movement of the time and continues to be shown regularly in film societies to this day. The script was written in six days at Dalí's home in Cadaqués. In a letter to a friend written in February 1929, Buñuel
Un Chien Andalou defined Surrealism as "Psychic Automatism", unconscious, capable of returning to the mind its true functions, beyond any form of control by reason, morality or aesthetics." The film was financed by Buñuel's mother, and shot in Le Havre and Paris at the Billancourt Studios over a period of 10 days in March 1928. It is a black and white, 35mm, silent film, with a running time of 17 minutes, although some sources state 24 minutes, and a physical length of 430 meters. For many years (and still), published and unpublished reports have circulated that Buñuel had used a dead pig's eye,