'A Lost Soul' Cinematography and 35mm Film

For my short film, I have some ideas as to how I plan to shoot my project and present in through cinematography. My main desire is to have the film look gritty, something that is well presented in 35mm film. Despite the fact that shooting my media product in 35mm film is out of the question due to the cost and specialised workforce needed to capture and process the footage; my film will be shot in digital at 24fps. However I intend on emulating the 35mm look by adding grain elements within my footage by adjusting the iso to deliver grain within my footage ever so slightly without it tarnishing my footage but instead acting as a visual asset. 

David Fincher's "Seven" shot in 35mm Film

Christopher Nolan's "Interstellar" shot in 35/70mm Film

Christopher Nolan's "Batman Begins" shot in 35mm Film

David Ayer's "Fury" shot in 35mm Film

These are examples of media products that have been produced in 35mm film, the film-makers have used it as either a visual convention for their genre but in some cases as a stylistic preference. The aesthetic 35mm film provides can be used to add grit to the visuals due to the organic quality the picture provides. This is something I want to simulate within my project.