Here are a few things I know about sharks from watching the Discovery Channel.
Sharks close their eyes when they bite something.
Sharks have to swim all the time or else they will drown. Putting a shark onto a platform above water will make it immobile and docile. Sharks do not regenerate a new eye after it is punctured by a sharp object in less than five minutes. So we have another crappy movie. This movie is a combination of Jaws meets Alien.