What´s a trailer?
The traditional definition of a trailer (film) is as follows (from wikipedia):
Trailers consist of a series selected shots from the film being advertised. Since the purpose of the trailer is to attract an audience to the film, these excerpts are usually drawn from the most exciting, funny, or otherwise noteworthy parts of the film but in abbreviated form and usually without producing spoilers. For this purpose the scenes are not necessarily in the order in which they appear in the film.
What´s a videogame trailer? Definition provided by wikipedia:
The content and production process is similar to that for movies, complicated by the need to convey the way the game plays.
With that out of the way let´s begin this thread topic.