The atheists push the Da Vinci theory, but it is not plausible.  The Shroud's history can be traced to AT LEAST 100 years before Da Vinci's birth.
 
I have studied the Shroud since the 1980's and have a blogspot that I invite you to visit: http://amazingshroud.blogspot.com/   The more I study this amazing relic, the more convinced I am that its complexities are far beyond human engineering.
 
I saw that video about the Da Vinci, but it is not even close to the truth.  It compares the Shroud face to Da Vinci's.  What you REALLY should study is the painting entitled "Christ the Pantocrator" that has been in an Egyptian monastery (St. Catherine's) since the first century.  They are many REMARKABLE points of congruence between the Shroud and this painting. Many art historians believe that the painter of the "Pantocrator" must certainly have used the Shroud for his reference.
 
The best and most accurate video that I have ever seen on the Shroud is "Unwrapping the Shroud" that was presented last year by the Discovery Channel.  However, they only ran it a few times and will not answer my requests to make it available for public purchase. That is not surprising.  Most of the atheist that run the Discovery Channel WANT you to believe the Da Vinci story.  It makes them quite uncomfortable to consider the possibility that the Gospel is true, and that Jesus of Nazareth left us physical evidence of His resurrection.

I am not wanting to argue these points on FIVE DOVES, and John certainly wouldn't want that either.  If you want to discuss any information on the Shroud, please comment on my blogspot.
 
Most importantly, I don't really care if you believe the Shroud is authentic.  The main point is that you believe that Jesus of Nazareth is risen as He said!