Some films that had an impact on me and still can:
* The Game (Michael Douglas)
* Amadeus (F. Murray Abraham)
* Interstellar (Matthew McConaughey)
* Event Horizon (Sam Neil)
* Zulu (Michael Cain and Stanley Baker)
* White Buffalo (Charles Bronson)
Looking at my short list there are some common elements:
* With the exception of the horror films (Event Horizon and White Buffalo), these films have powerful soundtracks. The Game relies on the minimalist music in the style of Messien, which is broken in a moment of utter chaos by 'White Rabbit' by Jefferson Airplane. Interstellar's use of pipe organ and brass was absolutely compelling.
* The main characters in these films were highly controlled and restrained in their emotions, but nevertheless manage to completely wrench one's guts with human reality. I once overheard a chef explaining the art of a great desert: A great desert strongly tempers and controls the sweetness, so that it is definitely there, but does not ever become the principal flavour of the dish. The effect is that emotional gravity is generated and built towards a climax, without you really knowing it is building, but once there it has the ability to genuinely move you.
* The cinematography combines both narrational sequences and elements which are more in common with photography - a visual communication of significance and story, which explains the visual plot.