Film Opening Coursework. Film Opening Analysis - The Devil Inside

To help me get a better idea of what film opening genre to decide, I have decided to watch a series of film openings from different genres and analyse them, seeing which one provides the most impact, which ones aren't very good and why, which ones are and why etc.

The Devil Inside's film opening is very good. It's very tense from the start and you are already surrounded by questions such as; is this possession human? where is she now? what is she doing right now? is she dead? It's full of suspense and it's straight in with the action instead of dragging it out for a long time, which I don't think is very good.