Luis Buñuel has publicly stated that he considers the film a failure and that if he had shot it later in Paris, he would have gone more extreme with it (cannibalism).
The film's cinematographer, Gabriel Figueroa, frantically approached director Luis Buñuel once he had seen the final cut of the film with concerns that there were several instances of repetition, something he was sure was an editorial mistake. Buñuel assured him that the repetition was a creative choice and reminded him that he edited his own films. The director recalled that Figueroa remained skeptical that the repetition was purposeful and not an editing mistake even after his explanation.
Was banned in Russia because the idea of people not being allowed to "leave a party" was considered offensive and anti-government.
The title was taken from a friend of Luis Buñuel, José Bergamín, who was writing a play with that title but never finished it. When Buñuel wanted to title his film, he asked for the rights of the title from his friend, but he answered that there was no trouble, because it was taken from the Bible, the Book of Revelation.
Luis Buñuel expressed frustration in regards to the film's low budget and the lack of amenities available on set in Mexico. As an example of these hardships, Buñuel recalled that the film operated on such an austere budget that he could not even afford to purchase fine table napkins for the dinner party scenes, nor could such napkins be easily obtained in Mexico at the time. He was only able to procure one such cloth napkin for a close-up shot of the dinner table when the film's makeup artist brought one from her home.