The theatre of Humberstone’s office is located in front of the main square and was constructed between 1934 and 1935. Built in the Art Deco style using Oregon pine wood, it reflects the improvement in living conditions that the offices experienced during that period. With a capacity of around 360, the theatre hosted operetta and zarzuela companies, as well as popular plays in its most heyday. The building was also used as a cinema, projecting a variety of films that were a major amusement for mine-workers and their families during their free time. While the aim was to entertain, the content also served to educate, with the mise en scène of topics that were heavily laden with high social, political and ideological themes.
With the theatre’s seats, floor and ceiling decoration being recently restored, this building today is considered as one of the office’s main attractions for visitors.