Something that bothers me now that I remember it is in the shot right after luke gets out of his x-wing and Leia, Han and Chewie congradulate him, after it cuts to another angle I don't belive Peter Mayhew is wearing Chewbacca's headpiece anymore. I think it was pointed out in Deleted Magic, it happens when he bends down to go under the x-wing. You can see the back of his head, maybe it could be collored brown?