hmmmm...since its almost Christmas

Was just watching "The Davinci Code" on TNT. I have read the book as well as Dan Brown's "Angels and Demons" book, have not read the latest. Not going to comment on what i think about the books (or writing style) no, no, this post is more a question...a conundrum...

So if Sophie was the last descendant of Mary and Jesus...does that make her a Jew or a Christian? Because I think I'd be a bit conflicted if I found out who I was I might be thinking, well crap! What would great x 79 Grandpa Jesus want me to be...cause he was a devout Jew...but then there is this Christan thing - even though he wasn't one, just his followers, does that make me one though? or does that make me a Jew...and...all hell...confusing.