Trailers play a massive part in a movies box office takings and require a lot of thought to get the tone right.
Teaser trailers are what we generally see before we get to see the full length trailer. It sets us up with a hint of the storyline, how it looks and mainly to get us excited about the movie. The right teaser trailer can make a massive impact on how well a movie does in the box office, a good teaser means big money.
There is a specific art to creating a good teaser trailer, the amount of footage, the music and the tone are all key features to generating a hard hitting teaser trailer.