[DamnthatDavid]

Well, it being made into a movie.

The book is written by Practchett (Discworld Books) and Gaimen (Have not read his stuff yet), and will be directed by Terry Gilliam*
Here a quick summary

A baby is born, it is the Anti-Christ. The baby Anti-Christ is accidently switched at birth. And is misplaced. As the end of times approaches, an angel and a demon must team up to sort out the whole mess. Including finding the Anti-Christ, who is now a 11-year-old boy.

Gilliam's other works include Monty Python Movies, Fear and Loathing in Las Vegas, Brazil, and the Brother's Grim (which is also in Production)