In the August preview video (high/low) from ViceCity.com, there's something rather special swimming around in the first boat scene. At first I thought it was the outline of the bridge pillars making it look like a shark, but after a closer look it became clear; there was a shark in the water!
It's not as clear in a still screenshot, but if you take a look at the movie, you'll see it moving forward slowly at the pillar of the first boat scene - it almost looks like the sharks dorsal fin is above the water. It's quite challenging with the camera moving from right to left, but now you know it's there it should be easier.
Will these sharks attack? Can we feed them? Will blood fill the water as someone is eaten alive? I wonder...
Thanks to Ryan for his good eye work.