The Trás-os-Montes Trilogy - Belonging to a crucial period in Portuguese history, and the end of the Salazar regime and the country's political opening, the set of films Trás-os-montes (1976), Ana (1982) and Rosa de Areia (1986), start from the fundamental gesture of filmmakers to move away from the city and travel in the Northeast, the poorest and most forgotten region of Portugal, where Margarida Cordeiro was born.