Lighting
Lighting was a big factor in this movie. Most of the time it was more dimmed to give the effect of being mysterious for example when they reveal who the mysterious teacher is (the one trying to kill them) he comes out of the shadows, giving it a darkend mood and aura.
Camera Angle
Camera angle was another in being able to define who was the bad guy and who was the good guy as well as their emotion. During an emotional time, for example when Sophie saw her dead grandfathers body or talked about him, they zoomed up on her face to put emphasis on her emotion of sorrow brought more emotion to the audience and effect to the movie.