Sorry, but there's a good reason why PJ used depth perception instead of midget actors in the LOTR trilogy. Midgets, don't have the shape of normal human beings, they're usually disproportionately shaped. Plus they're movements are not like that of normal humans. So no Warwick Davis. And as for Gollum, his strange body shape would have been difficult to replicate without CGI(I think Peter Woodthorpe's portrayal doesn't LOOK right). And if you've seen Beowulf, you'll find that kind of CGI is standard issue these days.
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