I absolutely cannot wait for this film.
(Better quality version available at Apple).
If you haven't, I'd strongly recommend the original nonfiction book and THEM: Adventures with Extremists, from the inimitable Jon Ronson.
Having been to the cinema four times this summer (probably my quota for the year), let me say that Harry Potter is a good entry for those who are following the series, though not up to Azkaban's standards, Moon is splendid, well-written and features great old-school effects that blow the likes of Transformers 2 out of the water (not hard, admittedly).
Finally, Inglourious Basterds is glorious, no matter what Peter Bradshaw says.