A Note on Pre-Production That Saves Everyone Time
Pre-production saves time when it turns imagination into shared evidence before the expensive part begins.
Pre-production saves time when it turns imagination into something other people can use.
A useful pre-production process makes the movie visible before the shoot day begins. Storyboards, animatics, VFX tests, camera tests, lighting tests, location photos, blocking diagrams, edit tests, and rough video storyboards all help because they expose assumptions while they are still cheap to solve.
Today, almost anyone can make a useful video storyboard with a phone. It does not have to be beautiful. It only has to answer practical questions: where people stand, what the camera needs to see, what the location fights, and which part of the scene actually matters.