Do all scenes have a 3-act structure? And is there a usual amount of beats to them...like six beats?

Not every scene in a SP is long enough but... Using a 3-act structure to write a scene can be extremely helpful. Same with writing a sequence.

Look at how Scott broke down the scene from SHAWSHANK. It's really a mini outline.

Beginning: Andy looks back on how he was sentenced ...

Middle: But Andy also realizes that...

Ending: He tells Red about Mexico...

Before you write a scene you can come up with the beg, mid, end--and then later expand each section into a full scene.

I'm using this technique in a big way for the script i'm currently writing and it's making a big different. I've always had trouble with dialogue & scene work.

cool, thanks.