“L’École de Marinella Senatore” has been at Les Laboratoires d’Aubervilliers (Paris, FR) for a three-month period. The School open to everybody and free of charge, regardless of age or previous experiences offered the opportunity to share knowledge and learn, and to take part in creating an Operette. MétallOpérette is a musical piece created collaboratively with all the participants: teachers and students ranging in age from 6 to 98 years old. Most of the workshops and lessons were proposed by participants themselves; they trained and educated themselves in lighting, dance, costume, script, set design, make up and other activities. Based on real events and written by dozens of citizens of Aubervilliers and Paris, the story is based on the former factory that is currently the building occupied by Les Laboratories d‘Aubervilliers. Several main characters (union delegates, workers, shareholders, etc.) are staged in the context of social tension created by a series of strikes launched in 1966 after the announcement of the imminent closing of the factory. The narrative plot is focused on the trade union and cultural heritage of Aubervilliers as a symbol of a resistance still alive. MétallOpérette uses different live show formats - from experimental and political theater to Opera, through to dance as a form to replay individual and collective bodies - to crack systems and fixed structures while bringing forth other perspectives.