But Smeagol has the starring role of the preview, in my opinion...chilling in his intensity! I really think you'll love it. I was very pleasantly surprised at how they portrayed him. ('Member, I'm a Smeagol fan too). It has to be before the "taming" because as he speaks the hatred in his voice for Baggins and his obsession for the Ring is obvious in every part of every word.
I remember that you are a Smeagol fan. (Smeagol fans unite!) I think Jackson is fond of Gollum, and he will be the "star" of The Two Towers.