I've seen two distinct layout types, and can't come to a conclusion as to which is better.
There's:
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AGATHA; We’ve got to save Othar!
KROSP; We do?
AGATHA; Of course we do! He has no idea that he’s walking into a trap! If we don’t save him, he might be killed!
KROSP; …Is this one of those situations that involve ‘ethics’? ‘Cause I’m a cat, you know. I’ve never been very good at those.
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where the text follows right after the name of the speaker
and then there's:
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1. MACBETH: That will never be. Who can impress the forest?
Yet my heart throbs to know one thing. Tell me,
if your art can tell so much, - shall Banquo’s issue
ever reign in this kingdom?
2. SOUND: THUNDER (2X).
3. MUSIC: WEIRD MUSIC-UP. DUCK FOR VOICES.
4. ALL WITCHES: Seek to know no more.
5. MACBETH: I will be satisfied. Deny me this, and an eternal
curse fall on you! Let me know!
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where the text is grouped into its own column.
Opinions?