Thriller conventions & "Se7en" opneing titles & "Shadow of a Doubt" - Alfred Hitchcock

I'm goping to explain the genre "Thriller" conventions. The thriller convention are:
-A crime at the core of the narrative (often murder but not always).
-A complex narrative structure, with false paths, clues and resolutions.
-A narrative pattern of establishing enigmas (problems) which the viewers expecs to be resolved.
-A protagonsit (the main character) who is systematically dis-empowered and drawn into a complex web of intrigue by the antagonist (the person aposing the protagonist).
-Extraodinary events happening in ordinary situations.
-Themes of identity.
-Themes of mirroring.
-Themes of voyeurism (looking at other poeple).
-Protagonist with a 'flaw' which is exploited by the anatagonist.
-Titles often reflect an aspect of the pro/antagonist's psychological state.
-There is often a scene near the end of the film in which the protagonist is in peril.
-Mise en scene which echoes/mirrors the protagonists plight.

During class we anaylised the opening credits of the thriller "Se7en", these are the notes that were taken:

-The titles used were edgy and eye catching, as they didnt stay still, and had an shaking effect.
-There was good use of music.
-There is use of repetative images.
-The camera was not still its seemed to be movign about as if it was jumping around and shaking.
-Most of the shot dissolve into the next shot, a good use of transitions.

After that as a class we watched the first 10-15 minutes of one of Alfred Hitchcocks movies called "Shadow of a Doubt".
This film follows the thriller conventions perfectly. We see the protaganists from the very start and he is almost always covered in some form of shadow. During one scene shadow falls over his face and he almost comes to life, this therefore gives us the idea that he has darkness wihtin his character. The opening credits to this film are in stark contrast to the first scene we see. The opening credits are absed around a posh ball but upon asking my teacher about this he told me that the music come from an old opera and the music was called the "Merry Widow" which did have some releance in the film itself.