This video demonstrates a first pass at digital clean up for the opening scene of I'm a Big Shot Now. The concept of a dust map (or dirt map) comes from @TheStarWarsTrilogy.com (see: https://www.youtube.com/watch?v=gATZLpMHNQE&t=208s).
I've adopted that process to work with cleaning any piece of film along with the use of the Neat plugin for AE ( @NeatClips ) and a Photoshop java script.