AKA: SCENE-BY-SCENE DOCUMENT
A step outline (or scene-by-scene, or a beat sheet) is a document that describes what happens in each scene prior to writing the script. This is generally so that script editors and producers can see (and approve) what the story will look and feel like before the script has been written. They are most common (and often obligatory) in TV, and occur less frequently in film development.
There is no set format for a step outline, although it's fairly standard to number and list the scenes as follows (dialogue is sometimes added as a guide or flavour):
1. INT. DANNY'S OFFICE. DAY
Danny writes a blog post about what a step outline is. He takes a sip of coffee, and wonders about what he might have for lunch. His phone rings. Outside, an alien ship lands. Danny doesn't notice as he answers the phone. It's his agent.
2. INT. AGENT'S OFFICE. DAY
Danny's agent has some good news. He's been offered to reboot the Harry Potter franchise. She's sending over the contract immediately.
3. INT. DANNY'S OFFICE. DAY
Danny plays it cool with the agent but when he hangs up, he whoops and dances for joy. Outside his window, a creepy alien gazes at him with sinister intent. Danny freezes in shock when he sees the alien. The alien smiles. Danny gulps. The alien brings up a gun, and vaporises Danny to a pile of dust.
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