Not sure about RR, since he doesn’t like to work with film anymore, but if you ARE working with film prints or negatives, you can always do what Eli Roth and Edgar Wright did with their fake trailers and damage the film. Stamp on it, tear it slightly, throw it around, scratch it- that sort of thing.
Then it really WILL be fucked up!
But if not lol, just use Final Cut Pro, like mr blonde_22 suggested. Probably better.