That would make an awesome mini-series; the second coming of Jesus through DNA technology..
If only I could write. I had an idea of a rogue Cardinal stealing the Shroud of Turin. Biologists were able to lift DNA from the shroud and clone a baby. The Cardinal is assassinated by forces of evil (yet to be determined who this is personified by and where they are located ie. within the church hierarchy or external to the church). The location of the surrogate is now a mystery and the Vatican must employ a Marine Chaplain that has special forces training to locate and protect the surrogate. The idea being that the DNA structure of Jesus makes him unique in the ability to house God's spirit. But since this is now man made the question of whether Satan can usurp this spiritual process is called into question.
The chaplain is a less than perfect man with waxing and waning faith through out his service to the church. This is important because as signs indicating this may be the second coming start appearing his faith strengthens. Much of this comes in the form of an old priest who is assigned to assist him in determining whether the Cloned Christ is genuine is revealed late in the story to the Chaplain to be the Apostle John, who was given immortality until Christ comes again. He has been hidden by the Church for his protection and because John felt it was important for people to come to faith in Christ by the testimony of the Church and not a miracle that would take the focus away from Christ.
As the chaplain now protects the old priest and they find the surrogate. The culmination of the movie ends in a final battle where John dies protecting the baby and reveals that this Clone must therefore be the Christ because only upon His coming would he lose his immortality.
So it's part religious movie, part action movie. If I could write I would have put together a movie treatment. If anyone wants to run with it just give stig and honorable mention.