While it is entirely up to you how you want to write (which is the beauty of screenwriting) I would…
Ty Leisher
31

Fair points, though I tend to reserve the comma for instances where a cut/new shot doesn’t make sense and as such ought not to be implied.

For example:

He pulls off his helmet, PANTS HARD.

Or:

Her eyes widen, face glistens with sweat.

As for the run on case, I tend to just leave no punctuation, and keep the first word of the next scene’s action like so:

Joe turns to watch Jane move into
INT. BEDROOM - NIGHT
where Jane rips a suitcase off of the wardrobe.

Like you said, everyone’s going to have their own styles. Main thing is remaining consistent within a piece.

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