The film was Buñuel's second film credit, he having previously worked as an assistant director on Epstein's film Mauprat. Following an argument with Epstein about his interpretation of the material, Buñuel left the production.
Buñuel's second film credit came after working as an assistant director on Epstein's "Mauprat."  He left the project due to a conflict with Epstein over how to interpret the script.