ABC News reconstructs Kennedy assassination, confirms Warren Commission conclusion. This would be something I'd be interested in watching. The sticking point for me is, can an average gunman (not a sharpshooter) make the shot from that book depository window.
Oliver Stone's movie made a lot of the "back and to the left" of Kennedy's head, but a person's head isn't like a watermelon. There's muscles in the neck, there is good reason to argue that his head could push back after being shot forward.
Whatever.
No one will ever come up with a clear enough answer that everyone will be satisfied. Still, I would like to see a well done documentary that really tries to come up with the simplest, most likely answer -- be it a guy on the grassy knoll or Oswald himself.