The Da Vinci Code
Leigh Teabing ( Sir Ian McKellen) is the Teacher, and has been exploiting the Opus Dei (a branch of the Catholic Church) to aid his own quest for the Holy Grail. It turns out the Grail is not a cup, as previous films have suggested, but the remains of the ancient Mary Magdalene, Jesus Christ's supposed companion/spouse.
Teabing confronts Sophie Neveu and Robert Langdon ( Audrey Tautou and Tom Hanks) at the supposed resting place of Mary Magdalene and threatenes them to open the cryptex (which contains the actual whereabouts of Mary Magdalene). Robert secretly releases the map from the cryptex keystone and breaks the cryptex so it appears that the clue inside it is lost forever, which allows the police to arrest Teabing, as their Captain Bezu Fache ( Jean Reno) is also a member of the Opus Dei.Bishop Aringarosa ( Alfred Molina) realizes that he and his monk Silas ( Paul Bettany) were betrayed and used by the Teacher, but Silas does not realize this and panics, shooting police officers and accidentally his master. Police then shoot and kill Silas, but Aringarosa survives, albeit in the hands now of Fache, an angered follower who was besiegingly tipped off by Aringarosa to pursue Langdon as the murderer behind this travesty. Fache takes Aringarosa into custody. The map/clue Langdon pulled from the cryptex leads himself and Sophie to a church in Ireland. Unfortunately, Magdalene's remains had been moved. However, while there, Sophie reveals some more details about her past with her grandfather, the Grand Master of the Priory, who kept her greatest secret from all including her. Langdon then figures out that Sophie is the descendant of Mary Magdalene and Jesus Christ. After the death of her family, she was taken to be the ward of her "grandfather". And Sophie's grandfather had set up this scheme of events to help her keep the secret of the grail so it doesn't die with the other Priory of Sion members (since they were all assassinated in the beginning of the movie and the Priory of Sion is a secret organization that are to protect the grail and the blood line of Jesus Christ). It then turns out Sophie's grandmother is still alive, and she offers Sophie a place of sanctuary where she will be guarded by other worthy members of the Priory. Sophie and Langdon say their heartfelt goodbyes.
Finally, back in France, Langdon has a realization that the Holy Grail was there in Paris all along. The clues in the map lead Langdon back to where it all started, at the Louvre, below the Roseline, between the inverted pyramid (the Chalice) and the pryamid beneath (the Blade). In a room surrounded by the art of the masters, below which lie, ever permanently, the remains of Mary Magdalene. Langdon kneels, as the Knight finishing his quest, and bows his head in reverence to her Holiness.