Good thrill. Some inaccuracy when it comes to scuba diving, but Mandy Moore's acting was phenomenal.

Weak plot

It was fun to watch, especially with my shark obssessed kids!

A fun watch. Was expecting it to be more gory, considering it's listed as a horror flick. A bit off on the sister relationship. As a sister, would one use the ex-boyfriend's reason for the breakup to manipulate the heartbroken sister? It was as if she validated the ex-boyfriend's excuse and sided with him.