"Get ready for one of the more absurd rumors you'll read all week. According to Comic Book Movie ? who've been shoveling out some doozies this past month ? Christopher Nolan is entertaining the idea of giving a cameo to Heath Ledger's Joker in The Dark Knight Rises.
Since Legder unfortunately passed on prior to The Dark Knight hitting theaters, in order to do this they'd have to either use old never-before-used footage from The Dark Knight and/or some sort of CGI wizardry, similar to what The Sopranos did with Tony's mother Livia after that actress had passed away.
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http://www.fandango.com/movieblog/co...es-650257.html
On side note: Tony's mom in sopranos looked horrible cgi-ed of course they will do better job (bigger budget + better production team) what do you think?