This is the trailer for the film "Let the right one in" I think that it is a really effective trailer because it doesn't give too much away. I like the music that has been selected because it sounds quite dark and mysterious I also like the sudden burst of noise when Eli drops down from the building which makes you jump and then creates an atmosphere of panic and fear.
I particularly like the use of short clips because it gives the trailer more of an edge and by making the tempo of the music faster and faster it gives you the idea that the film is very dramatic.
There is also the disturbing noise of Eli drinking the persons blood which is heard very clearly in that part of the trailer which is effective because you get more of a clear picture of what the film is about and it then makes it pretty obvious that the film is about vampires
This trailer is also very effective because there isn't much narrative going on apart from a couple sentences which makes the trailer very dramatic because you don't know fully what is going on.
Overall if I was to watch the film judged on the trailer then I would definitely go and see it because the trailer makes it seem exciting and different to most horror films.