The main theme of the DaVinci Code movie is the purported theme that Jesus married Mary Magdalene and had children.
Any born-again Christian who has done his / her homework knows that is a lie.
But many Christians do not realize that this is not a NEW theme or concept.  Let me just say this, I am not a really knowledgable history buff.  For an in-depth study of this concept, check out the book, "BLOODLINE of the HOLY GRAIL" (The Hidden Lineage of Jesus Revealed).  There is far too much data for me to convey in this post.
But my point is this : Jesus could say that he had the legal/ accepted blood line both through his mother, Mary, and his legal father, Joseph, to be eligible to be King of the Jews / "The Christ" / "The Messiah."
I believe the Antichrist will be able to "prove", through his bloodline, that he is eligible to be "the (acceptable) Christ."
This concept dates back to King Arthur and the Knights of the Round Table and their search for "the Holy Grail" (the holder of the cup that Jesus drank from at the "Last Supper.")  And the idea runs through many of the secret / fraternal societies.  The European royals are all(?) connected to these accepted lineages.  Which makes a European royal a candidate to be the Antichrist, IMHO.
So, you see, Satan has a definite PURPOSE for the release of this movie, The DaVinci Code, at this time.  I believe we are getting VERY CLOSE to the emergence and acceptance of the ANTICHRIST.
IHS, Gloria McCrea