The Castle of Purity (Spanish: El castillo de la pureza) is a 1972 Mexican drama film directed by Arturo Ripstein.

"[2] Actress Dolores del Río was interested in the rights to the play and contacted Luis Buñuel, who declined, but recommended his protege, Ripstein.

"Dolores del Río called and said, "I would like to make an adaptation of the play", and I said, "I would prefer to go directly to the source and take the case from the newspapers.

"[5] Producers Manuel Barbachano Ponce and Don Gabriel Figueroa backed Dolores del Río's choice of casting, but were crushed when production manager Felipe Subervielle told them the script had never been paid for.

Set designer Manuel Fontanals had worked with names like, Gabriele D'Annunzio (illustrating the first edition of 'Dreams of the Seasons'), Miguel M. Delgado, Roberto Gavaldón, Gilberto Martínez Solares, and the stage plays of García Lorca.

"[8] The home in the film reproduced the old houses in the center of Mexico City, in meticulous detail on a set at Churubusco studios.

[9] Ripstein made several films that were the final works of three time Ariel Award winner, cinematographer Alex Phillips, with The Castle of Purity being the last.

He filmed hundreds of movies... was Gregg Toland's roommate, and was famously the cameraman Mary Pickford insisted shoot her close ups.