In what way does your film opening use, develop or challenge forms and conventions of existing horror/thriller/dramas?

I feel that my opening film uses the conventions of a drama extremely well.
For example it is quite a sunny day which does not necessarily show conventions of a drama but leads away from a horror. In a way the mise en scene does develop conventions of a drama because at first it a nice sunny scene, but then the mood is changes through the characters actions, leading it to take a dramatic twist.

Also a big part of developing the conventions was the themes that i am using throughout my film opening. They are alcoholism and drug taking, which links neatly in with someone who has just lost his relative (which we see through the man standing at his grave). I feel that all of these themes linking together use and develop the conventions of a drama.