Initially set as a Spanish and French co-production, changes in distribution agreements led to the film only being produced by Cooperativa Cinematográfica Albatros.

[1][7] It was the third and final collaboration between cinematographer Godofredo Pacheco with Franco, after working with him on The Awful Dr. Orloff (1962) and The Sadistic Baron von Klaus.

[6] Ángel Escolano said this distribution problem caused difficulties for Cooperativa Cinematográfica Albatros, as the film had cost more than initially expected.

[6] Franco alternative said that Eurociné had dropped out as left the project after realizing the film was casting more expensive actors.

[6] The film was distributed in southern parts of France starting on April 22, 1964, under the title Vous souvenez-vous de Paco?

[10] Outside Spain and France, the film was shown in Montreal, Canada on August 16, 1965, where it screened with Jean Luc Godard's Contempt (1963).

"[11][12] In 1991, Spanish critic Carlos Aguilar stated that the film "triumphs, totally, where just one year earlier La muerte silba un blues has failed, partially.

"[13] Andrés Peláez Paz praised the film, and included it in a 1997 anthology Antología crítica del cine español 1906-1995 of Spanish cinema alongside the most famous Iberian masterpieces.