Initially Leslie Nielsen was only hired to appear in the teaser trailer, pitched against Spanish comedian Chiquito de la Calzada to show the contrast between American and Spanish humor. However, when the teaser came out, hype was created about seeing Nielsen in a Spanish movie, so he was re-hired to shoot a part in the actual film.
Leslie Nielsen's last movie appearance
The bank security camera film showing Maligna disguised as Espinete with a fake beard is a parody of a security camera film showing Jaime Giménez Arbe aka "El Solitario", reputed to be Spain's most dangerous bank robber, who also used disguises including a fake beard. "El Solitario" committed over 30 bank robberies between 1993 and his arrest in 2007, mostly in rural areas.