Finally got around to watching this movie. Read the reviews that it was panned as it's a war drama (read: Not enough action) but I really enjoyed it because it kept the satirical aspect of "soldiers went to war while America went to the mall".
It doesn't stray too far from the book, which was very well-written and critically-acclaimed. When I read it (and watched the movie), I thought to myself "no way the public was that pro-war", but considering it was set in 2004, it doesn't surprise me.