Freudian - Application to films

Batman - The Dark Knight

Joker - ID:

The joker wants to bring chaos, a weapon on society and a man that just wants to watch the world burn. Even though this character may have a plan, it's still a route that is bad for people to go anywhere near. Someone who wants to break the rules. These correlate with elements of an Id in an extreme manner but bad for the conscience.

Batman - Ego:

Torn between the two characters of The Batman and Bruce Wayne, he shares both sides and takes inspiration from the Superego and the Id. From 2:53 until the end of the clip, it is clear to see that Bruce Wayne is more prominent but he is still wearing the suit. His judgement is clouded by anger but asks Alfred for words of advice in his time of need.

Alfred - Superego:
He encourages love and wisdom to anyone who needs it but more towards Bruce. As seen in the clip above "Rachel's Death" the character is there to comfort Bruce and to offer advice on how to conquer the Id/Joker. 

The Ego (Batman/Bruce Wayne) is being pushed and pulled by the Id and the Superego. Bruce wants to be able to do the right thing but sometimes when either the Id or Superego is more present than the other the Ego tends to lean that way. In this case as the Ego chooses to save Harvey over Rachel but the Eg would never know if that's the better option. Letting Rachel die as the diegetic sound of Harvey screaming in dread over the phone, she tries to comfort him but with the non-diegetic electric cello which plays the Famous Joker theme (a D note) that's a cue for the audience that something may go wrong. Just like a canted/dutch tilt angle.
Cutting to the 3 minute mark the Superego joins the Ego and the Id is not around. This happens throughout the film as only one or the other is paired with the Ego, it's never all three parts of the mind or in this case, characters. Trying to comfort Bruce, Alfred prepares tea. In the open yet dark room the camera is positioned to be tilted up at Alfred and level with Bruce yet both mid shots. With words of wisdom but staying close to the ground, Alfred offers help and takes away Rachels note as he feels it's not time for Bruce to know. For Freud this is the mind holding back certain/suppressed information so that the Ego and think clearer for now as there may be too many issues that the mind is trying to solve all at once. "Rachel believed in what you stood for, what we stand for". This is Alfred reminding Bruce how to think in stressful situations and how the Superego wants what's best for the Ego. Sometimes to solve an issue like the Id, the Superego has to 'burn the forest down' to draw out the Id to confront it but as the Id clouds the Egos judgement we make mistakes. That is why everyone has a Superego to help us learn from those mistakes. In my opinion, this makes perfect sense to how the mind works and encapsulates the mind and Freuds way of thinking.

Fight Club 

Quickly edited shot but mainly shot reverse shot over the shoulder. However, when the camera is aimed at Tyler, only he is in frame. Whereas when the camera is on Jack, they both fill the screen over-the-shoulder. mixed with mid shots as Jack is across the room, then as Tyler tells him to sit, the camera place out wide as a side on two shot. This shot is also slightly tracked and tilted down so that they both stay in frame.
A slight montage takes place as Jack is working out what is actually going on; that him and Tyler are the same person. As the non-diegetic sound keeps the audience in suspense the miss-en-scene is edited so that we can see Jacks thinking process back to key moments but instead of Tyler it's him in his place. As Tyler helps jack understand the situation it is clear that is what happens when someone, who suffers from an identity disorder, lets it go too far. "You were looking for a way to change your life, you could not do this on your own. All the ways that you wish you could be, that's me. I look like you want to look, I fuck like you want to fuck; I am smart, capable and most importantly, I am free in which all the ways that you are not". This is direct from how Freud splits up someones sub-conscience. Yet in the real world, most people never act upon it and they stay trapped and not free in how we all want to live our lives.

Tyler Durden:
A rebellious character that doesn't obey the law. It is common for the Ego to aspire to be like the Id as they also stand as a more free entity. He is impulsive and irrational, he expresses himself by physical desires such as sex with Marla and causing damage to society 'Project Mayhem'.

The Narrator/Jack:
Once again, swayed by both the Id and the superego.

Marla:
The Superego that has a firmer grasp on reality and is there to remind the ego of what is good from bad, right from wrong. Pushes you to be a better person but compared to how the Id is portrayed in Fight Club, is also more trapped and not free.