Lorenzo di Bonaventura (Transformers: Revenge of the Fallen) is producing this film from a script by Erich and Jon Hoeber.
The comic was written by Warren Ellis and illustrated by Cully Hamner.
It was a three-book series that was published in 2003 and 2004. It centers on a former black-ops CIA agent who is now living a quiet life in retirement. Things change when a high-tech assassin appears on the scene with every intention of killing him.