I'm writing a short film that has the vast majority scenes set in a pub, with the main male character about to approach a woman, and he imagines/projects some of the possibilities of this - it goes nowhere, leads to sex, leads to long term relationship, leads to his murder (Basic Instinct style), leads to his imprisonment through weird chain of events, gets slapped for attempting a threesome, she's the mother of his children, etc etc.
Basically someone with a vast imagination but using this to show the beauty of standing before a nexus in life that can branch off in limitless directions - which is the theme.
So the screenplay is a large collection of very short scenes, that are happening at different times.
Some of these are past, in that he's implied it's happened before and could happen again.
The story starts and ends in the present, and we come back to it a few times to keep it grounded and at times for comedic effect.
The rest of the scenes are either future or imagined - same thing really, as he's imagining the future, but I believe a slugline is typically written as "later" in this case.
So, I had a lot of sluglines that begin :
Int. bar, night
Then I started writing slugs like :
Int. bar, night (original scene)
Int. bar, night (later)
Int. bar, night (another time)
So the reader can follow it a little easier, but i'm not sure if this is correct. Also i'm unsure for imagined scenes (things that have never actually happened - he's just projecting to the possibilities) if I should label them numerically :
Int. bar, night (Fantasy 1)
So i guess the general question comes down to : Is there an standard way to write slugs to differentiate scenes set in the same location that are in the future, past, present, and imagined?