Film Trailer inspiration

This trailer starts off slow as it introduces the characters, which is accompanied by a steady, mysterious soundtrack. Straight away the 1 second frames of bodies and silhouettes causes the audience's interests to be peaked as I feel it's necessary that the audience are constantly asking questions in their mind. However, this movie trailer fails in the sense that as a viewer, I feel like I've already seen the movie as the trailer gives loads of the narrative away which causes the viewing experience to be a tad repetitive. Despite giving away too much information, the ending sequence utilises the sudden fast pace accompanied with a faster soundtrack of a sound of a phone being disconnected, this links in with the narrative as it's about a stranger calling.