Check out the fifth post, the picture thee says it all:
http://www.millenniumfalcon.com/phpbb/viewtopic.php?t=835%20http://chud.com/forums/showthread.php?s=&postid=1134099#post1134099
It's here too:
http://boards.theforce.net/Episode_III_(Spoilers_Allowed)/b10331/15901732/p2
I really don't doubt Lucas would do such a thing (btw why not replace sir Alec Guiness with Ewan "Big Fish/Moulin Rouge" McGregor as well?), I mean, I belive Lucas will transform the SW trilogy into a festival of crappy CGI and ridiculous plot changes, but this pic is fake. I rest my case.