Planning
Turn the script into beats, boards, and an animatic. Resolve coverage while it is still cheap to change.
Write it, direct it, and cut it in one place, carrying the cast from first beat to final frame.
Turn the script into beats, boards, and an animatic. Resolve coverage while it is still cheap to change.
Shape framing, blocking, expression, camera, light, and pace beat by beat. Generate several takes, then select the one that plays.
Keep approved cast, wardrobe, props, locations, and voices with the production, and reuse them scene to scene.
Turn the selected scenes into a connected film with dialogue, sound, music, and a finished edit.
Develop period locations, crowds, and set pieces an independent production could not stage.

The opening sets where and when, states the film's visual rules, and gives a reason to keep watching. It is a decision, not a picture. Work it out from the premise and the references, at the point where changing your mind costs a redraw. What the rest of the film has to match is settled before a scene is generated.

A character has to stay recognisable under new light, in a new place, at another beat. Give the production one definitive face, and every scene is cast from it, then checked back against it before joining the cut. Wardrobe and age hold too, which is where continuity usually slips.

Spectacle still needs a purpose. The set piece should change the character's situation, not pause the film for a demonstration. Plan it against the scenes either side of it, then build the shots, the sound and the cut in the same place as the rest of the film. Scale stops being a budget question and goes back to being a story one.

Order, framing, coverage and rhythm are all visible on boards while they are still cheap to change. Resolve the scene there, with the characters and locations you have already approved, and the sequence you sign off is the one production works from. Reordering is a redraw here and a reshoot later, so nothing about the scene is left to be discovered on the day.