The Storyboard - The Life Saver
Seeing it in advance is the key to good directing. Whether you're thinking of the performance or the photography, if you can see it in your head you can start re-creating it on the set.
You can just turn up and hope to get good stuff. And sometimes it works. But it's far, far better to have a plan - a storyboard.
Paper is cheap - film is expensive
Well, video is much cheaper than film - but time on location, even with an amateur crew should not be wasted. Oh dear, the light's going. We'll have to do that sequence tomorrow... But the leading lady has to go to work tomorrow. And so on.
An example may help.
Some bits good (music end), but not a top bit of film-making. What on earth does a barrel (with human contents) have to do with littering?
If you want to convince your viewer of something, you need to SHOW the reason why. What can make a litterer regret littering?
A very simple plot:
A man (or woman) eats a banana. Then must dispose of the skin.
There's no bin in sight, so he chucks it away.
Somebody (a lady?) sees the desecration and calls to him.
He turns, sees she is pretty, and presumes she wishes to make his acquaintance.
He walks towards her, slips on the banana peel, and falls down, cracking his head on the pavement.
The lady puts the peel in the bin and walks off.
I think he now regrets his actions. Littering has been seen to be a bad thing.