The document analyzes the opening sequences of several thriller films including Gone Girl, Shutter Island, Black Swan, Sixth Sense, and Jaws. It discusses conventions used such as dull colors to signify danger, isolated settings to create tension, establishing shots to set the scene and time period, and revealing just enough about characters to pique audience interest while still leaving questions unanswered. Overall, the opening sequences set an ominous tone through their use of darkness, isolation, and hints that something bad is about to happen without giving everything away.