 Also searching for the Grail is a secret cabal within Opus Dei, an actual prelature of the Holy See, who wish to keep the true Grail a secret to prevent the destruction of Christianity.The film, like the book, was considered controversial.It was met with especially harsh criticism by the Catholic Church for the accusation that it is behind a two-thousand-year-old cover-up concerning what the Holy Grail really is and the concept that Jesus Christ and Mary Magdalene were married and that the union produced a daughter, as well as its treatment of the organizations Priory of Sion and Opus Dei.