Inception trailer

The trailer creates tension through explosions, guns and the suggestion that an "idea" is bigger than we could ever imagine. The credibility of the plot is helped by the reputation of Leonardo DiCaprio, the previous work of the director Christopher Nolan (The Dark Knight) and the three big production companies behind it (Warner Bros, Legendary Pictures and Syncopy).

The use of a fog horn throughout and the music getting faster towards the end helps build the tension aswell with a girl shouting "WAKE ME UP!" desperatly at the end to leave the audience thinking.

It then leaves the date of release and website at the end so people can find out more if they want.

Difference between trailers and teaser-trailers

A teaser-trailer will be shown long before the film is released to inform people that it is coming. The idea of them is to get people interested in the film and not the plot of it. They do not use footage from the actual film and its aim is to tease you (as suggested in the title). They are usually 30 seconds to 1 minute in length and will give a release date and a website so that people can track the development of the film online.

This is different to a trailer which will be shown about a month before the film is released. It will be much more specific giving the audience an outline of the story and introducing the main characters. Shots from the film will be used to give the audience a sneak preview. They tend to be around 2 minutes in length which is long enough for the film company to entice you to come and watch their film. It will also say a release date and a website at the end.