Generic conventions in "face off" opening sequence

Face off has alot of generic conventions that a thriller should have. The very first that is noticed is the idea of paranoia. When the scene is first set there is a man and his son being watched over through a gun sight. The next is more complicated as although there is nothing the father can do to prevent his son from dying it is him that is to blame for his death. The non-diegetic sound in the opening sequence mirrors the characters feelings wich is also another convention. In the opening there is a very clear good guy bad guy theme but as past viewers will know the film twists and turns so that none of this remains clear. The final convention is the idea of equilibrium. The equilibrium is completely shattered in the first opening minutes of the film after the child dies. Bringing in the start of revenge.