Diegetic Perspective: Blade Runner 2049 focuses on the toy horse and how it links with the unknown offspring of Deckard in a unique way by not revealing who it is but after a first viewing it becomes obvious. As the AI Joi and how you look at her as human or not is also focused on closely by the camera by when she is not broken up in scenes where the camera doesn’t focus on her compared to when she is broken up in hologram the camera does focus on her. This is done to show her importance to K and every time she is at risk it focuses on it like with the horse and K.
Intra Diegetic Perspective: The Amazing Spider Man goes into first person when he firsts suits up and swings through Manhattan. This scene use this affect to show the thrill and excitement from Spiderman while the audience see themselves what swinging through the city is like for spider man. By going first person and experiencing this with Spider Man, it shows his transition from superhero to kid as he is as blown away as the audience is.
Extra-Diegetic Perspective: In both the Deadpool movies, Deadpool breaks the fourth wall throughout for comedic effect by this he is making out he knows he is in a movie by how he talks to the camera and mimics Ferris Beullar in end credits scene, this is used as a gag throughout the both films. Deadpool uses this due to source material where he breaks the fourth wall constantly as a way he shows knows he is in a comic book. Overall this is to play into the character of Deadpool who is unlike everyone on screen as differentiates him to other comedic superheroes, this makes him more iconic to audiences as well as partly being relateble to the audience due to most similar movies taking a more serious approach.