There's been talk, and even plans, for a feature film based around the video game Halo for years -ever since the incredibly realistic game franchise began. But will it ever happen? After all the talk and delays, we would be surprised to ever see it reach theaters. Still, it's fun to do some fantasy casting. Of the many top actors available today, who would you slot into the roles of Master Chief, the High Prophet, Cortana, Sgt. Avery Johnson, and the others? Unreality has some good suggestions, although when the movie really begins casting in ten, twenty years …all these actors may be retired, and there will be a new crop to play the parts.