This film is playing the local theater here in Mexico with title "Tras la puerta." In order to find out the movie's English title so that I could check reviews, I clicked on the link to the trailer on the theater's website. That was a big mistake! The title was not revealed until the end. While the movie looked interesting, the trailer gave away what must be a huge amount of the plot. This is the worse example I have seen of how not to make a trailer. By starting at the beginning and going through the the story in order while revealing several key moments, the trailer robs the viewer of being surprised. Trailers should not be cinematic CliffsNotes. This trailer needs spoiler alert. Trailers are meant to attract viewers. In my case, it may have done the opposite.
