I saw the first matrix, and thought that the surround was done entirely well during the entire movie (I.E. when the telephone rang, it really sounded like it, the whooshing, the bullets zzing by, etc)
i've also watched winged migration. if you have a plasma screen, i definitely suggest checking it out. even if you don't, it's got amazing camera angles and the vibrant colors and textures on the birds and them skimming across the water is nothing short of breathtaking on a panasonic plasma. and the surround sound was great too.