Deja vu- Crime Thriller

Deja vu is a conventional crime thriller for many reasons. After the bomb explodes the viewer is left wondering who commited this attack on so many civilians, and children, also why they may have done it. We are then introduced to the Protagonist of the film, who is a well known actor, Denzel Washington.
Leading up to the explosion non-empathetic music is playing, to emphasize the mood of the passangers on the boat, who are all excited and enjoying what seems like a party. Because of this un-empathetic music the explosion seems much more of a surprise, so adds to the shock of the movie.
The location of the film is in a city, so a very average place. This makes the viewer more able to relate to the movie, so can follow it acting as the protagonist easier. (voyeurism)
The title of the movie does not give away what may happen in the film, plot wise, however i predict that the attacks seen in the first scene may be repeated, or non-linear continuaty will occurr, to add a deja vu element to the movie.