I think the main thing was that the character couldn't speak in regular language, so he had to be mimed.
They asked if I was interested in a role as a large alien in a movie.
This has been the best thing that ever happened to me.
When you consider that you're a character that doesn't speak, but you've still got to react to the other actors, you've got to make a noise of some kind.
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.
I was in the costume department having the costume made the next day, and we were shooting two weeks later when the main unit returned from Tunisia.
When we first put the costume on, you could see the human shape underneath, so the padding gave Chewie his rounded shape, really.
Then I put on the new suit they'd made and it felt wonderful to climb back into it and feel the character coming back out again.