This is a 1961 film directed by Luis Buñuel and produced in Spain by Gustavo Alatriste.
Censored and banned by the Francoist authorities in Spain, this anticlerical film was acclaimed at Cannes, winning a Palme D'Or. Buñuel himself said "I didn’t deliberately set out to be blasphemous, but then Pope John XXIII is a better judge of such things than I am."
Viridiana was the first feature film Buñuel ever made in his native Spain. After the film was completed and sent to the Cannes Film Festival, the government of Francisco Franco tried unsuccessfully to have the film withdrawn, and banned its release in Spain. The film was only released there in 1977, when Bunuel was seventy-seven years old.
Well thats a little history that I dug up about the movie. Somehow I'm worried that I might end up forgetting about movies like this until I chance upon some remnant of it in the distant future. A scary thought that!