Ruy Alexandre Guerra Coelho Pereira (born August 22, 1931) is a Portuguese-Brazilian film director, screenwriter, film editor, and actor. Guerra was born a Portuguese citizen in Lourenço Marques (today Maputo) in Mozambique, when it was still Portuguese colony. Guerra studied at IDHEC film school in Paris from 1952. In 1958 he started his career as an assistant director in several French films. Later on he immigrated to Brazil, where he directed his first feature film, Os Cafajestes (1962).

2017