Teaser Trailers? What are they?

Three British Film (teaser)trailers:








Teaser trailers are like normal trailers except they are much shorter (30-60 Seconds long). They also contain little actual footage of the film/game/television series.
They usually earn the name "Teaser" from being brought out quite a long time in advance of the actual release date of the film/game/television series so as to pep the audience and to make them excited about it.

Teaser trailers are usually only made for big-budget and popularly themed movies. Their purpose is less to tell the audience about a movie's content than simply to let them know that the movie is coming up in the near future, and to add to the hype of the upcoming release. Teaser trailers are often made while the film is still in production or being edited and as a result they may feature scenes or alternate versions of scenes that are not in the finished film. (Source - Wikipedia)

Teaser trailers are made just to make the audience excited of the approach of the product. They manage to do so by showing small, obscure and cryptic parts of the film in order to get the audience guessing and contemplating what may actually happen in the film and consequently get over excited and thrilled.

[Okay now I'm not sure if Mr Wroe actually meant the movie The Myth with Jackie Chan... or myth in general.. I'm going to do the film though.]
Why do Teaser Trailers suit "High concept" films like "The Myth"?
I'm not sure but I'm guessing it's because it focuses on plot/scenery and characters rather than detailed story line and or individual characters roles. It just says about how he will take a journey and discover some stuff that is interesting realy.