Diegetic Gaze [3rd Person]: The Platform [2019] allows the viewer to question the system that the characters have been placed in whilst still being engaged in the plot.
Intra-Diegetic Gaze [1st Person]: Rec [2007] uses the ‘found footage’ genre to allow the viewer to fully immerse themselves in the film and feel as though they are interacting with the characters instead of just watching the scenes play out in front of them.
Extra-Diegetic Gaze [2nd Person]: Deadpool [2016] uses a lot of 4th wall breaks which adds comedic elements to the film and involves the viewer in the world.