Desc: Opus Dei - Una cruzada silenciosa: Directed by Jean de Certeau, Marcela Said. With Ronald Bown, José María Escrivá de Balaguer, Joaquín García-Huidobro, Luis Silva Irarrázaval. Opus Dei is a documentary that goes to the heart of the most influential and secretive organization of the Catholic Church. An unprecedented journey into the world of Christian fundamentalism in which the will to "the cross in the middle of the world" is the definitive loss of the boundary between religious and temporal scope.