What do i need to do?

I need to show that I understand what an advertising campaign is; I'm am going to use the campaign for time warners film batman the dark knight for my research. I need to look at the different products and show undertstanding of the following points

1. How a product is successful.
2. Who the traget audience is.
3. How it links with the other products in the campaign.

I can then apply my understanding to our campaign to plug studios.