Tomb of Jesus, found?

I saw the headline for this article this afternoon and had to read it to find out what it was about. I guess James Cameron, of Titanic fame, has produced a documentary called The Lost Tomb of Jesus. He claims this tomb contains the remains of Jesus, Mary Magdalene and possibly their son Judah.
I am extremely skeptical about this, but will be paying attention to developments in this story. Questions that arise include: how will they test to see if this is actually the tomb of Jesus when there is no evidence outside the Bible that Jesus existed? Could this tomb actually provide evidence of Jesus existence...what exactly was found in this tomb? How will various sects of Christianity react if scholars believe it is Jesus' tomb? This all seems a little too much like The DaVinci Code to me, but I'm curious. It will be fun to watch and see how this story unfolds and how people across the world react to it.