hi i`m new here but i gotta say that jack nicholson just wanst attention he knows too damn well that he`s too old to play the part, of course he knows how to do it from his point of view but i gotta say that ledger looks more threatning with that look than the joker played by nicholson, and as we can see on the trailer is awesome not only looks like a real threat to batman, but he also change the voice to sound more like he`s insane ledger not even uses his voice youy can really tell that`s heath in the screen, and for example jack`s joker you can say he was playing the role as he is in real life, but don`t get me wrong i think jack`s joker is still good but ledger tops that, i can`t wait to see the movie, and well nolan`s change the way batman looks, it looks more real and all the characters acquired some dimensions, they`re not flat like in burton`s and schumacher`s film where the only you see was batman, and the villains, and you forgot `bout gordon, alfred, and sometimes even bruce wayne so it`s better at nolan`s way, and thanks to batman begins a dark character came back to the darkness and not to a magic wierd world (burton`s) or a exagerated gotham with huge monuments ridicles vehivles and a lot of neon lights, so thanks to chris nolan and christian bale, michael cane and now to heath ledger to put batman in the nigh where he belongs.