Lighting

http://www.youtube.com/watch?v=EVtOeaNuny4&feature=related

Natural background light, its a dark evening which is a convention of a horror movie, suggests that something bad is going to take place.
Fill lights are used as lamps in the living room, to iluminate the girl on the screen, adds a warm homely vibe, which is contradicted with the dark outside.
Street lights are lit outside to iluminate the house, and higlights how deserted the area is, the use of street lights also add a shadowy effect to the surrounding trees, shadows are another conotation of horror films establishing the genre. An eery effect is created.
It could almost be described as a small spotlight that glistens and relfects of the kitchen knife, this highights the importance of the light and suggests it could be a key prop in a later scence.
The one wall light iluminates the hall as the girl walks through it, it creates many shadows from the wooden bannister, creating a dark eery vibe.
A blue filter and the blue tv screen luminate the screen emphasising what a dark night it is, blue filters are often associated with horror films.
The boy tied up seems to be lit with a smoky fog, the spotlight emphasises the character so the audience can identify its a key point, the smoke appears to be suffocating him suggesting he's in danger.
Low key lighting is present when the boys tied up and the only light iluminating him is a reflection in a window creating a dark and sinister atmosphere.