I finally broke down and saw Amores Perros after stumbling upon it at a video store.  Although I heard alot about it when it was in theatres, through the media and this website, I didn't want to see dogs ripping each other apart for human pleasure and profit.  But like I said, I heard the video calling my name and was pleasantly surprised to find, through the short after the film, that the dogs were also actors.  And, everyone was right - this is a very, very, very good movie!!! 