Momento opening sequence

Momento starts off as a black background with the main credits and film title displayed. The music is in minor and I think it works well with the black background because it sets a dark atmosphere for what is anticipated next.The black fades to a close-up shot of a polaroid photograph. The photo shows a corner of a room with blood-stained tiles and a head or body part in the bottom corner. The camera focuses on the shot of the polaroid for about 30 seconds, before the hand holding it starts to wave the photo, implying that they want it to keep on drying, that maybe they cant get over what the photo is showing up as, he doesn't want to believe it. The photo developing displays blood and as the audience, we are wondering who or what is showing up. However, the film opening is clever because the picture is disappearing, so we are left confused and want to watch on. As the opening goes on, we learn that the film is reversing so we want to learn what has happened to cause the image of the photo.