The part in the snail slurping contest when Timon eats those 5 snails, I watched over and over again then I began to notice something. I was like "Wait a minute, weren't there just 5 snails a second ago?" Turns out one snail disappears! I have a link to a video about it.
http://video.google.com/videosearch?q=The+Glitch+In+The+Lion+King+3+%28Snail+Slurping+Contest%29&hl=en&emb=0&aq=f#