In the church scene - the first scene of the movie to be shot - Rita Macedo appears as "Lucía de Nobile". She was not able to complete the film due to her pregnancy.
The scene where a bear and two sheep appear during the dinner party was based on a real incident at a dinner party that Buñuel once attended in New York.
The title was taken from a friend of Buñuel, José Bergamin, 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 Revelations.
The Movie script was originally titled "The Castaways of Providence Street" ("Los Náufragos de la Calle Providencia).
Luis Buñuel has publicly stated that he considers the film a failure and that if he shot it later in Paris, he would have gone more extreme with it (cannibalism).
Luis Buñuel has claimed the film contains over twenty pieces of repetition in it. The film actually contains 27 instances of repetition.
Out of all the films in Luis Buñuel's Mexican/Spanish film period, this is the only film he had complete creative control over.
Was banned in Russia because the idea of people not being allowed to "leave a party" was considered offensive and anti-government.