The Deep Blue Sea film series consists of American science fiction natural-horror films, centered around genetically enhanced-sharks. The overall plot of the series centers around scientific studies conducted by marine biologists. These experiments provide the predatory animals with heightened intelligence, inadvertently causing the sharks to attack the underwater facilities and hunt the researchers that created them.Director Renny Harlin had become well known for bringing stylish action sequences into his films, but he also was noted for pushing the boundaries of effects work. This was evident in his earliest forays into horror with A Nightmare on Elm Street 4: The Dream Master. For Deep Blue Sea, Harlin employed animatronics wizard Walt Conti and his company Edge Innovations (which previ