ok before this grain thing gets out of hand i better pop in and reply.
the grain IS added to the sample clips on the mattes but the grain animation is deliberately disabled so becomes static. the reason for this is because they are just that... sample clips. Enabling the grain animation filter increases rendering times drastically and it just isn't worth all the extra time needed for a sample especially when i will probably be tweaking the shot and rendering it several more times before i am happy with it. the clip at the end of the trailer has been slowed down by over 50% just for the trailer so the grain will look unnatural. but when you say that the final trailer shot background replacement looks distracting it would be interesting if you could post a screenshot and outline the matte that you think looks distracting.
and janskeet, please at least bother to read whats already been discussed in this thread (and the ANH:R thread too for that matter) because its becoming a bit annoying when you keep asking questions that have already been discussed in length and fully answered already. you have been a member here for almost a year now so can't use the newbie excuse. if you can't be bothered to do that then please don't be surprised when people can't be bothered to answer your questions