Yahoo has released the first trailer for DIARY OF A WIMPY KID: DOG DAYS . Starring Z achary Gordon, Robert Capron, Rachael Harris, Devon Bostick and Steve Zahn , the family comedy is based on Jeff Kinney’s fourth “Wimpy Kid” book, which describes Greg’s worst summer ever beginning with Greg Heffley and Rowley Jefferson going to Rowley’s country club after school closes for the summer. Watch the trailer after the Jump... DIARY OF A WIMPY KID: DOG DAYS opens August 3rd, 2012 Please Leave A Comment-