Blue & Green

I'm not sure if people still use a blue screen at all or all special effects are done with a green screen. Either way with the HD revolution movies and TV shows are doing to have to do a lot more work to get the b/g screen stuff to look seamless. We watched Return of the King last night in HD and it looked incredible except for some moments when it was obvious there was some green screen work. I guess it will just be an excuse for the movie studios to redo movies twice on HD, one for the regular blu-ray purchase and another for the BR purchase that was redone to make it seamless.