soundtrack
The soundtrack is a key feature in any movie, especially The edge of tomorrow because it is what creates tension, as there are many explosions, cranking and noises of aliens, this is called dietetic sounds. Aswell as that, we can also here synchronous sounds, like the gun fire and people screaming, as it is on a battle field.
This would affect the audience by making them feel tense and not knowing whats going to happen next by hearing loads of explosions and gun shots.