La Lucarne magique (1971)

This variety show, with its new concept, is presented as a musical comedy. Having formed an orchestra, a group of young people perform in the courtyards of an old Parisian neighborhood, hoping to earn some money. But no one listens to them. All the tenants of the building are glued to their television sets. Only one mysterious man takes an interest in the group and offers them a box of magic matches.