In the new Warner Bros. animated film The Iron Giant, the title character, a gigantic robot, does not have a very mobile face. There is a scene in the film where he smiles and in my opinion the animators intend it to look as if he does this by shifting the angle of his head, much as Maytera Marble did in the Long Sun books.
By the way, I HIGHLY recommend this film. It is the best movie (animated or otherwise) that I have seen in years. I am cross-posting this message in case there is anyone who reads only one of the lists, because I really think everyone who likes any form of science fiction should go see it.
(Sorry, there are no midgets in this message, but I couldn't resist the title.)
William Ansley
*This is WHORL, for discussion of Gene Wolfe's Book of the Long Sun.