This document discusses techniques for creating an effective thriller film opening sequence. It recommends establishing clear good and bad characters immediately through costumes. For example, the protagonist could wear army clothes like in "I Am Legend" to convey their backstory. The document also suggests using varied shots, like tilted shots, to reflect the protagonist's confused mental state and build tension through sound effects and musical stings at important moments. It takes inspiration from films like "Inception" and "I Am Legend" for these techniques.