So far the one BBC reporter who has seen AOTC is giving a huge two-thumbs-up to the film with comments like, "This is going to be the most talked about movie of the year and rightly so."
If I recall correctly, FOX prematurely declared Al Gore the winner in the last presidential election so their credibility and judgement is somewhat dubious to me.
Lots of people claim they have seen this film, including some who have posted here. This BBC review claims the count of people outside of LUCASFILMS who has seen AOTC is less than 100 people and they all have had to go to SKYWALKER RANCH to see it.
You can read the glowing BBC review here:
http://news.bbc.co.uk/cbbcnews/hi/tv_film/...000/1969286.stm
There is no mention of specific performances in the film in the BBC review.
Hope that link works for you but I can not be responsible if it doesn't. I've encountered some issues with links being changed and moved lately but as of this moment the link works.