Lens with Rebecca: Research - refining ideas

I've noticed a lot of my research revolves around the classic horror film The Exorcist from 1973. It has made me think that instead of focusing my work on the theme of "Spookers" or special fx, I'd like to focus on a more solid theme like 'Possession' or split personalities, the theme in which The Exorcist is revolved around. I can focus on a more specialised look for my work, which is going to be more beneficial for me as I have a better idea of what I want my final product to look like. I intend to use overlaying techniques I have talked about, using images of myself in Exorcist make up (something I often do at my work, Spookers. I have earned the title of 'The Exorcist' at work for the acting I do so this theme relates to me) and images of my normal face. I will use different expressions to emphasise the idea of split personality and mood changes.
I am also going to look at someone called Owen Roizman, who was the Cinematographer/Director of Photography for The Exorcist.
Owen Roizman: http://www.imdb.com/name/nm0005845/
I am also going to look at a horror film director named Dario Argento, particularly his movie entitled "Suspiria" as there is good use of dramatic, surreal lighting which is something I could incorporate into my images.
Dario Argento: http://www.imdb.com/title/tt0245857/