NOTE 01
Write the film as a list of moments
A shot in Pencil0 runs 4 to 15 seconds, so a film is a sequence of short moments. Write with that in mind: a scene is several shots, each doing one thing, such as a character walking in, a reaction, a line of dialogue, a detail on a table.
You do not have to write shots yourself. The AI splits the script into shots. But a script written as clear, visual action splits far better than one written as internal monologue.