1/2. Opus Dei. In The Da Vinci Code , they are the ruthless villains with unlimited power and money. Opus Dei is one of the most mysterious clubs in the world. To their critics, they are a secretive elite cult who brainwash their members, control the Vatican and have tentacles reaching into governments all over the world. To the defenders, like Pope John Paul II , they are just a group of people who are trying to be better Catholics. Simon Cox gains access to the hidden world of Opus Dei to separate the fact from the fiction. Producer Richard Vadon