Never having played Chess before, it was most interesting to be playing the game with no pieces in front of me. But I still knew how to stroke my hair when I won.
It was amazing that during rehearsals, without any of the costume on, the character was there complete. It just happened. Half the time, I didn`t know I was doing it.
I think the things I wanted answered have been answered by people in the know that we can`t talk about, so I`m perfectly happy with how Chewie came to be where he is and what is going on in Episode III.
Richard Marquand, on Jedi, was very much an actor`s director.
Source: brainyquote.com