For any new brand, it is always a challenge to communicate their identity to any target group. And while brand behaviour is only established through time, multiple channels and prolonged exposure, for them to know what you are all about, the easiest way is one good audio-visual that helps build a brand recall and an image that they will build upon in the future.
From inner company functioning, people, staff, products, brand story and what not- the best way to communicate all this information in a compact way is through video.
If you have a good story, they will invest in your persona.