Here are 3 quick facts related to the Da Vinci Code:

1.  The Priory of Sion is a fake organization created in 1956 (not 1099 like the DVC claims is a "fact") by a French guy name Pierre Plantard.  He used forged documents to establish a link to older secret societies. 

2.  The Gospel of Philip was most likely originally written in Greek and later translated to Coptic, which means it didn't have any Aramaic words in it.  The word translated as companion is from the Greek word koinonos, which means a companion or partner, not a spouse. 

3.  If the painting of the Last Supper shows 13 people, and one of them is Jesus and one of them is Mary, why are there only 11 disciples?  One conclusion is that the feminine-looking one can't be Mary; it's John.  Da Vinci also portrayed John the Baptist (different from John the Apostle) as a girly man. 

These 3 facts don't prove anything.  But I wanted to list them here for "posterity".  (What does that mean?  I don't know.)