In the Third Man, how are chiaroscuro lighting and vanishing points used to construct a sense of disorientation?- Edited

There are particular shots in The Third Man that display both chriascuro lighting and vanishing points, but two in particular stand out as the two that create the most disorientation.

Here in this image, we see the character Holly wandering the streets of Vienna at night, full of despair due to the fact that his recent friend Harry Lime has recently "died". In this shot, we see Holly looking away to the side of the shot. What makes the shot most disorientating is that the vanishing point is in the opposite direction of which Holly is looking. So disorientation and confusion is created as the audience become unsure in which direction to focus their attention on: the direction Holly is looking in or the vanishing point, which appears to be the natural direction the setting is looking in. This is due to the lines on the side of the building and the street pavement all pointing towards the vanishing point. Also the use of chiaroscuro lighting in the direction of the vanishing point also makes the audience feel inclined to look towards the vanishing point as the high light intensity might signify that an important moment is going to occur there.

This image is very similar in the way that it disorientates the audience by making us want to look two separate ways. In this case we see Harry's shadow cast on the wall as he runs away down the street out of sight and we see the vanishing point, pointing towards the archway which Harry ran through which has high intensity light on the side of its arch; another example of chiaroscuro lighting. Again the audience naturally wants to focus on Harry's shadow, even more so as it is the only moving object in the shot. However we are also naturally drawn towards the vanishing point and the chiaroscuro lighting as it appears that the setting is directing us towards where we as the audience are meant to be focusing.

The use of chiaroscuro lighting could be an effective technique to use in our own thriller opening, due to its effect of disorientation and confusion in The Third Man. Therefore if we were able to replicate the use of chiaroscuro lighting in the same or a similar way, then we could create the effect of disorientation and confusion in our own piece, which is something that would likely get us high marks if we were to use it effectively. Another technique would be to use vanishing points in our thriller opening piece as well. Again, like chiaroscuro lighting, its effect of enigma and disorientation in The Third Man could allow us to use the same technique to create the same or a similar effect in our own piece, potentially leading to a higher mark.