Why Did We Never See Neal Stephenson's Future-Batman Movie?

Batman Beyond, the darkest and most futuristic animated Batman series, came close to becoming a live-action movie before Warners decided to go with Bat-origin story Batman Begins instead. The story of a teenager who becomes the new Batman in the dystopian future of 2040, thanks to a cybernetic Batsuit, Batman Beyond » 6/18/08 1:00pm 6/18/08 1:00pm