"Mr Marquand can we take that again? We appear to have an obviously fake arm in shot!"

That shot really need fixing, it looks like Vader's hand is a glove stuffed with newspaper and is sticking directly out of his shoulder on a wooden stick.

Yeah, I might redo that Obi-Wan/Luke mock up again it was weird how much the lighting matched up and if I spent a good couple of hours on it I might be able to do a more convincing background but Ben was taken from the studio photo and I'm not sure how to do the glow right.

I know, Why don't you give it a stab Vaderios ;-)