An engaging thriller with a mindless plot, Deep Blue Sea managed to keep me hooked throughout its loud 100-minute running time. A doctor and her team of researchers looking to find a cure for Alzheimer's in sharks in an isolated facility in the middle of an ocean - what more do you need for some sweet chaos while also supported by some unethical practices? Deep Blue Sea is not the most realistic shark film out there but it has a lot of cool action, suspense, the added pleasure of flooding sequences, and a protagonist that you love to hate. Go for it. (Grade B-). TN.