This document analyzes the openings of several thriller films, including The Butterfly Effect and Psycho, discussing their conventions, titles, sound, camera techniques, and mise-en-scene. For The Butterfly Effect, it notes that the opening breaks conventions by beginning with a quote about chaos theory and starting in media res. It analyzes the use of butterfly imagery in the titles to represent chaos theory. For Psycho, it states that as the first thriller film, it established many classic conventions of the genre, such as starting in a remote location and featuring a pretty blonde woman as the first victim.