This movie could be seen as one of the many "western" mushroomed out in Italy after the success of Sergio Leone's "A Fistful of Dollars". What makes it noteworthy is the presence of Bud Spencer, here at his debut with the heavy-handed character which will make him later famous with the "Trinità" series, and the casting in the role of "villain" Jess Elfego of one of the most outstanding Japanese actors, Tatsuya Nakadai, at the time almost unknown outside his country, well before arising to world fame with the leading role in Akira Kurosawa's "Kagemusha".