Story Boards were used mostly in the latter half of the last century by film makers. Essentially the director or producer needed a method by which they could convey hundreds of shots that are found in a typical movie to not only to the cast but also to cameramen, cinematographers, production designers, lighting as well as the whole crew so everyone could see what the goal for a given shoot is. A storyboard was simply a bulletin board with hundreds of pieces of paper drawings that showed primary characters and movement with things like arrows to tell a cameraman to follow action for instance. They were very crude but did the job.
Around the turn of the century, movie makers began using animatics which are somewhat basic computer generated scenes with all the elements and these play out in real speed and show in great detail what the director is after. Essentially the cast and crew can what a digital animation of what they are to do. This has become the norm in modern movies due to the large amount of digital rendering that is done in post - an actor cannot react to a T-rex because it isn't there.
But either of these two tools can only be brought about
after there is a
script and while most videos, (where we're looking at drone footage) don't really tell a story, this does not have to be the case. A script is simply a road map to what we want to see or say or convey in a video. All of my tutorial videos start with a script, because with out that, it is really easy to make a long boring video, and believe me, I've made my share of long boring videos. ?
Another way to look at it is to watch your typical 'drone' video and write down what you see, in detail and then later review what you wrote. A Whole lot of drone videos would go something like this. . . .
Looking down while flying over a field, then look up and spin, look down again and fly back over hill in other direction, cut to low angle of hill flying away, cut back to hill and fly forward. . . . and so on. . . and so on. 
A script will allow you to put down in detail what you want to see but then you have to go out and shoot it which can present a new set of problems. The first advice I would (and do) give anyone wanting to get into videos is to become a student of what it is you find interesting, what is it about one video that keeps you watching while another has you turning it off in seconds? Learn the basics of photography and cinematography. There are some very basic things that if we stick to them we will make better videos instantly and finally - become your own worst critic.
