Ain't it Cool News had 2 reviews up for the new Clone Wars animated film, both Harry Knowles and Masswyrm gave highly negative reviews of the film. Now both reviews have been taken down. This is what I found on Wiki
On Aug. 10, 2008, Harry Knowles of Ain't It Cool News posted a very scathing review of the film, decrying the soundtrack, characters and other aspects of the movie. The review was almost entirely negative, but was pulled the same day following pressure from Warner Brothers. The Hollywood Reporter also published a largely negative review, but that review was not pulled.
The report on AICN says that there's an embargo on reviews by Warner Brothers, and even though some sites still have reviews up Harry's pulled his stuff until Friday.