In 1958, Fernando Osés, a wrestler and actor, invited Santo to work in movies, and although Santo was unwilling to give up his wrestling career, he accepted, planning to do both at the same time. Oses was planning on playing the hero (a masked cop named "El Incognito") in these two films, with Santo appearing as his costumed sidekick, "El Enmascarado". Fernando Osés and Enrique Zambrano wrote the scripts for the first two movies, "el Cerebro del Mal" ("The Evil Brain") and "Hombres Infernales" ("The Infernal Men"), both made in 1958, and directed by Joselito Rodríguez. Filming was done in Cuba, and ended just the day before Fidel Castro entered Havana and declared the victory of the revolution. Santo played a masked superhero-type sidekick to the main hero (who was called El Incognito) in these two films, and was not the main character (nor was he depicted as a wrestler in these 2 films, but rather a masked police agent of some sort). The films apparently could not find a distributor for several years. Santo's film career really took off in 1961 with his third movie "Santo vs The Zombies." Santo was given the starring role with this film, and was shown for the first time as a professional wrestler moonlighting as a superhero. When Santo's film career took off in 1961, the producers of the first two films slyly entered Santo's name into the titles and finally got them released.