Deep Blue Sea(1999)
Researchers on the undersea lab Aquatica have genetically altered the brains of captive sharks to develop a cure for Alzheimer's disease. But there's an unexpected side effect: the sharks got smarter, faster, and more dangerous. After a big storm damages their remote research facility, they must fight for their lives.
You can buy "Deep Blue Sea" on Apple iTunes, Google Play Movies, Rakuten TV, Blockbuster, SF Anytime as download or rent it on Google Play Movies, Rakuten TV, Blockbuster online.