Genre research.

The Exorcist
Horror
Religious and psychological
Age would be adults
A young child is being possessed you can tell this by the way the mum is saying she have a fit it wasn't like that and then there wa an image of the child just living there and she had bad eyes that were red and looked sore.
The lighting is dark and the camera is on an angle and the light keeps going on and off. when the titles come on the screen they appear suddenly and its as if they are creeping up I think this shows that it is a thriller one of the title appear behind a curtain whilst the curtain is blowing in the wind also titles appear on each step the camera is going up the stairs as if it from the feet angle the stairs are dark. The titles are shadowed being the first title this was showing that there was going to be something taking over her. The music is of a piano and its changing from a high note to a low note it was a classic horror theme tune. When the mum us talking to the doctor the lighting is bright but then when the priest is talking to the child its dark. The Title Exorcist changes the X changes upside down and turned it to a cross this is to show its (anti-christ) the back writing that shadows it is scribble.