This document discusses conventions in crime thriller films and analyzes several trailers, including for the films Se7en and Nightcrawler. It notes several typical conventions seen in crime thriller trailers, such as up-beat opening music, fast pacing, disturbing shots, disequilibrium over equilibrium, and a scare shot at the end. The document discusses how the author's group's crime thriller trailer challenges conventions by featuring a young drug dealer as the victim rather than a stereotypical mafia figure, and a dirty police officer as the villain. It also notes that crime thriller trailers typically do not follow a clear narrative or reveal the full plot.