Will Smith in this role is going to blow. If he once becomes the "fresh prince" in the movie, like he does in most movies, I am going to walk out. I think Gary Sinease or a young Harrison Ford would be much better in the role.
Its actually a mix of one of short stories in I, Robot (the one about the robot with the relaxed 1st law and Susan Calvin has to figure out which one it is) and the premise of the Caves of Steel. This could be a good storyline, but like I said, they are going to blow it. I would have gotten the writer/director of Blade Runner to do it.