I'm personally not a proponent for watching trailers on the internet or tv. I find them to be a poor quality in both sound and picture. Even the websites dedicated to the movies host poor quality trailers and if they are any good you aren't able to download them and keep them if need be.
Seeing that I work in a theatre I enjoy standing in the back of a theatre and watching them on the big screen. About 10 years ago, that was the first and only way to see the full trailers, but in these modern times you can see full movie trailers even on your telephones, yet I remain a purest.
As earlier mentioned I am very excited for the Batman Begins movie (my brother remains skeptical but that is neither here nor there. If he wants to defend his ignorance, he should start a blog) I stopped by the DivX website to update my drivers when I saw that they host high quality trailers of many major releases coming and already out. I highly recommend going there for your pretheatre trailer viewing, instead of many of the crap sites out there.
http://www.divx.com/movies/trailers.php
And yes, I have downloaded both Batman Begins trailers.
