They are horrible horrible at it. Simply atrocious. Check this review of "The Condemned" out. This is pretty much the first I've read anything on it, though I've seen the advertising all over the net.
http://movies.ign.com/articles/783/783642p1.htmlIt is like reading two reviews.
The first four paragraphs build it up and read like a part of some advertising campaign. From the first four bits it seems like this is going to be a very fun movie. Then follows a movie still and then four paragraphs that seem to be the actual review, that tear the movie apart.
It is a horrible piece of writing, poorly structured. How can you shift momentum half way through a review like that?