The Holy Grail in the Da Vinci Code

Whenever I see the words "holy grail", I usually think of two things: the song by Jay Z, and "The Da Vinci Code". In the movie, symbology professor Robert Langdon is met with the seemingly-impossible task of finding the Holy Grail, which he still assumes to be a cup until historian Sir Leigh Teabing explains the grail's true identity. According to Teabing, Jesus was actually married to Mary Magdalene, and had children with her; this was overlooked by the council of Nicaea when they were forming different scriptures for the Bible in order to emphasize Jesus's divinity. The Grail is shaped like a V, which is a reference to Mary's uterus, meaning that the real Grail would be Mary's children, the offspring of Jesus Christ. Thinking about the original myths of the Holy Grail from Celtic tradition, I just find this interesting how Dan Brown (the original author) was able to think of such an incredible conspiracy about this legend, and have it all tie into Christianity nonetheless.