Shoot from the first take - 'you must be dreaming'!
It just does not happen!
Videoing - film making is all about preparation and not instantaneous unless it's an actual sporing production - a footy game!
Apart from that it's ll about preparing the scene, working the script and cast and then after a a series of takes, the final cut!
Actors forget or drop lines, the backdrops fall over, a shadow is unwantingly cast upon the stage, an actor forgets to run up, an actor loses their cues.
It's all chaotic and out of control.
In reality - rehearse, do a camera take and then sit back and look at what went wrong - how you could improve.
Then, re-shoot and benefit from your experiences!