The document discusses the genre conventions of thriller films. It defines thrillers as films that create intense emotions of apprehension and exhilaration through the use of suspense, tension and excitement. Thrillers include many subgenres like mystery, crime, psychological films and use techniques like plot twists, red herrings and cliffhangers. Some common thriller elements discussed include criminal characters, menaced victims, corrupt societies, investigations and psychological themes. The document also lists example thriller films and directors known for the genre.