Tex Willer was created in 1948 in Italy and became one of the country's most popular and long-lived comic book characters.

[2] These included Sergio Bonelli working on an adaptation with Charlton Heston (as Tex) and Jack Palance (as Kit) being considered for the roles.

[3] Valerii liked the idea but found that Bonelli wanted to make a film where he would personally handle the costumes and changed the original story which never got into production.

[4] In the early 1980s, Duccio Tessari took on the project that was initially conceived as a pilot for a television series produced by RAI, Italy's national public broadcasting company.

[5] These included El Morisco, Sierra Encantada and Il signore dell'abisso which were written by Bonelli and drawn by Guglielmo Letteri.