Manta Ray Movie
You will need Apple Quicktime to watch this movie. It is a short selection of footage from some awesome Mantra Rays cruising past the boat up in Port Hedland. It was a bit of a rough day, but you get an idea of the size of these monsters and the army of baitfish\cobia that follow them.
Right mouse click and choose - Save Link As - or Save Target As- rather than trying to view it directly from the site, will save you lots of time.