I'll just say that I think it's a masterpiece and leave it at that. http://www.imdb.com/title/tt0443680/
I was surprised the USA today reviewer didn't try to have sex with the movie he liked it so much. It's running 71% on RT. Based on the reviews on Rotten Tomatoes, it is getting pretty polarizing reviews, people either really love it, or really hate it, case in point: "For fans who say they'd pay to watch Brad Pitt read the Yellow Pages -- well, your money might be better-spent on that."
Manhola Dargis, who I think has decent taste, and who I also think is the most intelligent reviewer at the Times not named Dave Kehr, pans it.